CVE-2026-54905 - concurrent-ruby: `ReentrantReadWriteLock` read-count overflow grants a write lock without exclusivity
CVE ID :CVE-2026-54905
Published : June 24, 2026, 3:42 p.m. | 56 minutes ago
Description :concurrent-ruby is a modern concurrency tools for Ruby. Prior to 1.3.7, Concurrent::ReentrantReadWriteLock can incorrectly grant a write lock after one thread acquires the read lock 32,768 times. The lock stores a thread's local read and write hold counts in one integer. The low 15 bits are used for the read hold count, and bit 15 is used as WRITE_LOCK_HELD. After 32,768 reentrant read acquisitions, the local read count crosses into the write-lock bit. try_write_lock then treats the thread as already holding a write lock and returns true without setting the global RUNNING_WRITER bit. This breaks the core mutual-exclusion guarantee: the caller is told it has a write lock, but other threads can still hold or acquire read locks at the same time. This vulnerability is fixed in 1.3.7.
Severity: 0.0 | NA
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CVE ID :CVE-2026-54905
Published : June 24, 2026, 3:42 p.m. | 56 minutes ago
Description :concurrent-ruby is a modern concurrency tools for Ruby. Prior to 1.3.7, Concurrent::ReentrantReadWriteLock can incorrectly grant a write lock after one thread acquires the read lock 32,768 times. The lock stores a thread's local read and write hold counts in one integer. The low 15 bits are used for the read hold count, and bit 15 is used as WRITE_LOCK_HELD. After 32,768 reentrant read acquisitions, the local read count crosses into the write-lock bit. try_write_lock then treats the thread as already holding a write lock and returns true without setting the global RUNNING_WRITER bit. This breaks the core mutual-exclusion guarantee: the caller is told it has a write lock, but other threads can still hold or acquire read locks at the same time. This vulnerability is fixed in 1.3.7.
Severity: 0.0 | NA
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CVE-2026-54904 - concurrent-ruby: `AtomicReference#update` livelocks when the stored value is `Float::NAN`
CVE ID :CVE-2026-54904
Published : June 24, 2026, 3:44 p.m. | 55 minutes ago
Description :concurrent-ruby is a modern concurrency tools for Ruby. Prior to 1.3.7, Concurrent::AtomicReference#update can enter a permanent busy retry loop when the current value is Float::NAN. The issue is caused by the interaction between AtomicReference#update, which retries until compare_and_set(old_value, new_value) succeeds; Numeric compare_and_set, which checks old == old_value before attempting the underlying atomic swap.; and Ruby NaN semantics, where Float::NAN == Float::NAN is always false. As a result, once an AtomicReference contains Float::NAN, calling #update repeatedly evaluates the caller's block and never returns. In services that store externally derived numeric values in an AtomicReference, this can cause CPU exhaustion or permanent request/job hangs. This vulnerability is fixed in 1.3.7.
Severity: 0.0 | NA
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CVE ID :CVE-2026-54904
Published : June 24, 2026, 3:44 p.m. | 55 minutes ago
Description :concurrent-ruby is a modern concurrency tools for Ruby. Prior to 1.3.7, Concurrent::AtomicReference#update can enter a permanent busy retry loop when the current value is Float::NAN. The issue is caused by the interaction between AtomicReference#update, which retries until compare_and_set(old_value, new_value) succeeds; Numeric compare_and_set, which checks old == old_value before attempting the underlying atomic swap.; and Ruby NaN semantics, where Float::NAN == Float::NAN is always false. As a result, once an AtomicReference contains Float::NAN, calling #update repeatedly evaluates the caller's block and never returns. In services that store externally derived numeric values in an AtomicReference, this can cause CPU exhaustion or permanent request/job hangs. This vulnerability is fixed in 1.3.7.
Severity: 0.0 | NA
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CVE-2026-54906 - concurrent-ruby: ReadWriteLock allows wrong-thread write release and stray read-release counter corruption
CVE ID :CVE-2026-54906
Published : June 24, 2026, 3:46 p.m. | 53 minutes ago
Description :concurrent-ruby is a modern concurrency tools for Ruby. Prior to 1.3.7, Concurrent::ReadWriteLock#release_write_lock does not verify that the calling thread acquired the write lock. Any thread with access to the lock object can release an active write lock held by another thread. A second writer can then enter its critical section while the first writer is still running. Concurrent::ReadWriteLock#release_read_lock also decrements the shared counter even when no read lock is held. Calling it on a fresh lock changes the counter from 0 to -1, after which normal read acquisition raises Concurrent::ResourceLimitError. This is a synchronization correctness issue in the public Concurrent::ReadWriteLock API. This vulnerability is fixed in 1.3.7.
Severity: 0.0 | NA
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CVE ID :CVE-2026-54906
Published : June 24, 2026, 3:46 p.m. | 53 minutes ago
Description :concurrent-ruby is a modern concurrency tools for Ruby. Prior to 1.3.7, Concurrent::ReadWriteLock#release_write_lock does not verify that the calling thread acquired the write lock. Any thread with access to the lock object can release an active write lock held by another thread. A second writer can then enter its critical section while the first writer is still running. Concurrent::ReadWriteLock#release_read_lock also decrements the shared counter even when no read lock is held. Calling it on a fresh lock changes the counter from 0 to -1, after which normal read acquisition raises Concurrent::ResourceLimitError. This is a synchronization correctness issue in the public Concurrent::ReadWriteLock API. This vulnerability is fixed in 1.3.7.
Severity: 0.0 | NA
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CVE-2026-54297 - Faraday: Uncontrolled recursion in NestedParamsEncoder allows stack exhaustion DoS via deeply nested query parameters
CVE ID :CVE-2026-54297
Published : June 24, 2026, 3:50 p.m. | 49 minutes ago
Description :Faraday is an HTTP client library abstraction layer that provides a common interface over many adapters. From 1.0.0 until 1.10.6 and 2.14.3, Faraday::NestedParamsEncoder, the default nested query parameter encoder/decoder in Faraday, decodes nested query strings without enforcing a maximum nesting depth. A crafted query string causes Faraday to build a deeply nested Ruby Hash structure. The internal dehash routine then recursively walks this attacker-controlled structure without a depth limit. At sufficient depth, Ruby raises an uncaught SystemStackError (stack level too deep), crashing the calling thread or worker. This can lead to denial of service in applications that pass attacker-controlled query strings to Faraday's nested query parsing or URL-building paths. This vulnerability is fixed in 1.10.6 and 2.14.3.
Severity: 0.0 | NA
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CVE ID :CVE-2026-54297
Published : June 24, 2026, 3:50 p.m. | 49 minutes ago
Description :Faraday is an HTTP client library abstraction layer that provides a common interface over many adapters. From 1.0.0 until 1.10.6 and 2.14.3, Faraday::NestedParamsEncoder, the default nested query parameter encoder/decoder in Faraday, decodes nested query strings without enforcing a maximum nesting depth. A crafted query string causes Faraday to build a deeply nested Ruby Hash structure. The internal dehash routine then recursively walks this attacker-controlled structure without a depth limit. At sufficient depth, Ruby raises an uncaught SystemStackError (stack level too deep), crashing the calling thread or worker. This can lead to denial of service in applications that pass attacker-controlled query strings to Faraday's nested query parsing or URL-building paths. This vulnerability is fixed in 1.10.6 and 2.14.3.
Severity: 0.0 | NA
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CVE-2026-46348 - Mastodon: SSRF Bypass via IPv6 Unspecified Address (::)
CVE ID :CVE-2026-46348
Published : June 24, 2026, 7:39 p.m. | 1 hour, 1 minute ago
Description :Mastodon is a free, open-source social network server based on ActivityPub. Prior to 4.5.10, 4.4.17, and 4.3.23, the list of disallowed IP address ranges was lacking an IP address range that can be used to reach local IP addresses. An attacker can use an IP address in the affected range to make Mastodon perform HTTP requests against loopback interfaces, potentially allowing access to otherwise private resources and services. This vulnerability is fixed in 4.5.10, 4.4.17, and 4.3.23.
Severity: 0.0 | NA
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CVE ID :CVE-2026-46348
Published : June 24, 2026, 7:39 p.m. | 1 hour, 1 minute ago
Description :Mastodon is a free, open-source social network server based on ActivityPub. Prior to 4.5.10, 4.4.17, and 4.3.23, the list of disallowed IP address ranges was lacking an IP address range that can be used to reach local IP addresses. An attacker can use an IP address in the affected range to make Mastodon perform HTTP requests against loopback interfaces, potentially allowing access to otherwise private resources and services. This vulnerability is fixed in 4.5.10, 4.4.17, and 4.3.23.
Severity: 0.0 | NA
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CVE-2026-46349 - Mastodon: LD-Signature Bypass via JSON-LD Named-Graph Restructuring
CVE ID :CVE-2026-46349
Published : June 24, 2026, 7:40 p.m. | 1 hour ago
Description :Mastodon is a free, open-source social network server based on ActivityPub. Prior to 4.5.10, 4.4.17, and 4.3.23, Mastodon's normalization of incoming activities signed with Linked-Data Signatures does not sufficiently protect the activities from a certain class of spoofing, allowing attackers to re-arrange a valid signed JSON-LD activity from a third-party actor to have it processed differently. This vulnerability is fixed in 4.5.10, 4.4.17, and 4.3.23.
Severity: 0.0 | NA
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CVE ID :CVE-2026-46349
Published : June 24, 2026, 7:40 p.m. | 1 hour ago
Description :Mastodon is a free, open-source social network server based on ActivityPub. Prior to 4.5.10, 4.4.17, and 4.3.23, Mastodon's normalization of incoming activities signed with Linked-Data Signatures does not sufficiently protect the activities from a certain class of spoofing, allowing attackers to re-arrange a valid signed JSON-LD activity from a third-party actor to have it processed differently. This vulnerability is fixed in 4.5.10, 4.4.17, and 4.3.23.
Severity: 0.0 | NA
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CVE-2026-47389 - Mastodon: SSRF protection bypass on older Ruby versions
CVE ID :CVE-2026-47389
Published : June 24, 2026, 7:41 p.m. | 59 minutes ago
Description :Mastodon is a free, open-source social network server based on ActivityPub. Prior to 4.5.10, 4.4.17, and 4.3.23, when using Ruby versions older than 3.4, PrivateAddressCheck.private_address? returns false for IPv4-mapped IPv6 addresses (::ffff:a.b.c.d) corresponding to some private IPv4 addresses, depending on Ruby version, this can include loopback, RFC1918 private networks, and link-local space. An attacker who controls DNS for any domain can publish an AAAA record with such a mapped address; any outbound HTTP fetch Mastodon performs against that hostname then opens a real TCP connection to the underlying IPv4 address, including 127.0.0.1 and cloud-metadata endpoints such as 169.254.169.254. This vulnerability is fixed in 4.5.10, 4.4.17, and 4.3.23.
Severity: 0.0 | NA
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CVE ID :CVE-2026-47389
Published : June 24, 2026, 7:41 p.m. | 59 minutes ago
Description :Mastodon is a free, open-source social network server based on ActivityPub. Prior to 4.5.10, 4.4.17, and 4.3.23, when using Ruby versions older than 3.4, PrivateAddressCheck.private_address? returns false for IPv4-mapped IPv6 addresses (::ffff:a.b.c.d) corresponding to some private IPv4 addresses, depending on Ruby version, this can include loopback, RFC1918 private networks, and link-local space. An attacker who controls DNS for any domain can publish an AAAA record with such a mapped address; any outbound HTTP fetch Mastodon performs against that hostname then opens a real TCP connection to the underlying IPv4 address, including 127.0.0.1 and cloud-metadata endpoints such as 169.254.169.254. This vulnerability is fixed in 4.5.10, 4.4.17, and 4.3.23.
Severity: 0.0 | NA
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CVE-2026-48028 - Mastodon: Removal of integrity-protected JSON entries from signed activities
CVE ID :CVE-2026-48028
Published : June 24, 2026, 7:43 p.m. | 57 minutes ago
Description :Mastodon is a free, open-source social network server based on ActivityPub. Prior to 4.5.10, 4.4.17, and 4.3.23, Mastodon's normalization of incoming activities signed with Linked-Data Signatures does not sufficiently protect the activities from a certain class of spoofing, allowing threat actors to remove JSON entries from valid signed activities from a third-party actor. This vulnerability is fixed in 4.5.10, 4.4.17, and 4.3.23.
Severity: 0.0 | NA
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CVE ID :CVE-2026-48028
Published : June 24, 2026, 7:43 p.m. | 57 minutes ago
Description :Mastodon is a free, open-source social network server based on ActivityPub. Prior to 4.5.10, 4.4.17, and 4.3.23, Mastodon's normalization of incoming activities signed with Linked-Data Signatures does not sufficiently protect the activities from a certain class of spoofing, allowing threat actors to remove JSON entries from valid signed activities from a third-party actor. This vulnerability is fixed in 4.5.10, 4.4.17, and 4.3.23.
Severity: 0.0 | NA
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CVE-2026-7539 - HP Dock Accessory WMI Provider Installer Security Update
CVE ID :CVE-2026-7539
Published : June 24, 2026, 7:47 p.m. | 53 minutes ago
Description :A potential security vulnerability has been identified in the HP Accessory WMI Provider installer for some HP Docking Stations, which might allow escalation of privilege and/or arbitrary code execution. HP is releasing software updates to mitigate the potential vulnerability.
Severity: 7.3 | HIGH
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CVE ID :CVE-2026-7539
Published : June 24, 2026, 7:47 p.m. | 53 minutes ago
Description :A potential security vulnerability has been identified in the HP Accessory WMI Provider installer for some HP Docking Stations, which might allow escalation of privilege and/or arbitrary code execution. HP is releasing software updates to mitigate the potential vulnerability.
Severity: 7.3 | HIGH
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CVE-2026-1840 - Missing authentication for critical function in Hubbell Aclara Metrum Cellular Web Interface
CVE ID :CVE-2026-1840
Published : June 24, 2026, 7:47 p.m. | 53 minutes ago
Description :The Aclara Metrum Cellular Web Interface is vulnerable to unauthorized access due to the absence of authentication controls on critical system functions. This weakness exposes essential configuration settings, allowing attackers to alter operational parameters and trigger system restarts without restriction. Such unauthorized changes can disrupt normal functionality and, if performed repeatedly, may lead to a loss of communications to the device.
Severity: 8.7 | HIGH
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CVE ID :CVE-2026-1840
Published : June 24, 2026, 7:47 p.m. | 53 minutes ago
Description :The Aclara Metrum Cellular Web Interface is vulnerable to unauthorized access due to the absence of authentication controls on critical system functions. This weakness exposes essential configuration settings, allowing attackers to alter operational parameters and trigger system restarts without restriction. Such unauthorized changes can disrupt normal functionality and, if performed repeatedly, may lead to a loss of communications to the device.
Severity: 8.7 | HIGH
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CVE-2026-50128 - Mastodon: Spoofing of attribution domains
CVE ID :CVE-2026-50128
Published : June 24, 2026, 7:48 p.m. | 51 minutes ago
Description :Mastodon is a free, open-source social network server based on ActivityPub. From 4.3.0 until 4.5.11 and 4.4.18, Mastodon has a feature to let websites credit authors of their articles. To prevent false attribution claims, Mastodon uses the attributionDomains JSON-LD term, however, an error in how it is defined makes Linked Data Signatures on the toot:attributionDomains property ineffective. An attacker can arbitrarily modify the attributionDomains value of a legitimately signed Update activity and bypass Mastodon’s signature verification. This vulnerability is fixed in 4.5.11 and 4.4.18.
Severity: 0.0 | NA
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CVE ID :CVE-2026-50128
Published : June 24, 2026, 7:48 p.m. | 51 minutes ago
Description :Mastodon is a free, open-source social network server based on ActivityPub. From 4.3.0 until 4.5.11 and 4.4.18, Mastodon has a feature to let websites credit authors of their articles. To prevent false attribution claims, Mastodon uses the attributionDomains JSON-LD term, however, an error in how it is defined makes Linked Data Signatures on the toot:attributionDomains property ineffective. An attacker can arbitrarily modify the attributionDomains value of a legitimately signed Update activity and bypass Mastodon’s signature verification. This vulnerability is fixed in 4.5.11 and 4.4.18.
Severity: 0.0 | NA
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CVE-2026-50129 - Mastodon: Persistent anonymous DoS via unhandled NoMethodError in MATH_TRANSFORMER
CVE ID :CVE-2026-50129
Published : June 24, 2026, 7:50 p.m. | 49 minutes ago
Description :Mastodon is a free, open-source social network server based on ActivityPub. Prior to 4.5.11, 4.4.18, and 4.3.24, a DoS can be triggered by (Uncaught Exception vulerability), due to missing exception handling in the math sanitizer. Malformed nodes can result in a DoS of a whole server or targeted users services, depending on the type of action that includes the malformed nodes and the services interacting with it. This vulnerability is fixed in 4.5.11, 4.4.18, and 4.3.24.
Severity: 0.0 | NA
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CVE ID :CVE-2026-50129
Published : June 24, 2026, 7:50 p.m. | 49 minutes ago
Description :Mastodon is a free, open-source social network server based on ActivityPub. Prior to 4.5.11, 4.4.18, and 4.3.24, a DoS can be triggered by (Uncaught Exception vulerability), due to missing exception handling in the math sanitizer. Malformed nodes can result in a DoS of a whole server or targeted users services, depending on the type of action that includes the malformed nodes and the services interacting with it. This vulnerability is fixed in 4.5.11, 4.4.18, and 4.3.24.
Severity: 0.0 | NA
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CVE-2026-52815 - Gogs: Unauthenticated Organization Teams Information Disclosure via API
CVE ID :CVE-2026-52815
Published : June 24, 2026, 8:01 p.m. | 39 minutes ago
Description :Gogs is an open source self-hosted Git service. Prior to 0.14.3, Gogs has an unauthenticated information disclosure vulnerability. The GET /api/v1/orgs/:orgname/teams endpoint at internal/route/api/v1/org_team.go:8 returns all teams for any organization without requiring authentication. The route group at internal/route/api/v1/api.go:380-385 lacks the reqToken() middleware, and the listTeams() handler performs no authentication check, exposing team IDs, names, descriptions, and permission levels to any unauthenticated caller. This vulnerability is fixed in 0.14.3.
Severity: 0.0 | NA
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CVE ID :CVE-2026-52815
Published : June 24, 2026, 8:01 p.m. | 39 minutes ago
Description :Gogs is an open source self-hosted Git service. Prior to 0.14.3, Gogs has an unauthenticated information disclosure vulnerability. The GET /api/v1/orgs/:orgname/teams endpoint at internal/route/api/v1/org_team.go:8 returns all teams for any organization without requiring authentication. The route group at internal/route/api/v1/api.go:380-385 lacks the reqToken() middleware, and the listTeams() handler performs no authentication check, exposing team IDs, names, descriptions, and permission levels to any unauthenticated caller. This vulnerability is fixed in 0.14.3.
Severity: 0.0 | NA
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CVE-2025-64719 - Gogs: Denial of Service in repository/wiki file listing web pages
CVE ID :CVE-2025-64719
Published : June 24, 2026, 8:03 p.m. | 37 minutes ago
Description :Gogs is an open source self-hosted Git service. Prior to 0.14.3, a malicious user with rights to create a new file on a repository or wiki page can trigger a denial of service condition in which the pages containing the listing of files will return HTTP error 500 and render the web interface unusable for the repository or wiki. The issue is present in file internal/route/repo/wiki.go and internal/route/repo/view.go where the pages try to recover commit information. If errors are returned while recovering commit information, the page will return a 500 error and stop rendering, resulting in a denial of service. This vulnerability is fixed in 0.14.3.
Severity: 0.0 | NA
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CVE ID :CVE-2025-64719
Published : June 24, 2026, 8:03 p.m. | 37 minutes ago
Description :Gogs is an open source self-hosted Git service. Prior to 0.14.3, a malicious user with rights to create a new file on a repository or wiki page can trigger a denial of service condition in which the pages containing the listing of files will return HTTP error 500 and render the web interface unusable for the repository or wiki. The issue is present in file internal/route/repo/wiki.go and internal/route/repo/view.go where the pages try to recover commit information. If errors are returned while recovering commit information, the page will return a 500 error and stop rendering, resulting in a denial of service. This vulnerability is fixed in 0.14.3.
Severity: 0.0 | NA
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CVE-2026-52795 - Gogs: Authorization Bypass in Watch API allows any user to monitor private repository activity
CVE ID :CVE-2026-52795
Published : June 24, 2026, 8:06 p.m. | 34 minutes ago
Description :Gogs is an open source self-hosted Git service. In 0.14.3 and earlier, any authenticated user can watch a private repository they have no access to, because the access check in the Watch API handler is inverted. The code checks if repoCtx.ViewerCanRead() (returns 404 when the user CAN read) instead of if !repoCtx.ViewerCanRead() (return 404 when the user CANNOT read). Once watching, the attacker's dashboard activity feed shows commit messages, branch names, issue titles, and PR details from the private repository. If email notifications are enabled, the attacker also receives emails containing issue and comment content.
Severity: 0.0 | NA
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CVE ID :CVE-2026-52795
Published : June 24, 2026, 8:06 p.m. | 34 minutes ago
Description :Gogs is an open source self-hosted Git service. In 0.14.3 and earlier, any authenticated user can watch a private repository they have no access to, because the access check in the Watch API handler is inverted. The code checks if repoCtx.ViewerCanRead() (returns 404 when the user CAN read) instead of if !repoCtx.ViewerCanRead() (return 404 when the user CANNOT read). Once watching, the attacker's dashboard activity feed shows commit messages, branch names, issue titles, and PR details from the private repository. If email notifications are enabled, the attacker also receives emails containing issue and comment content.
Severity: 0.0 | NA
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CVE-2026-25119 - Gogs: Authentication Bypass via Unvalidated Reverse Proxy Headers
CVE ID :CVE-2026-25119
Published : June 24, 2026, 8:07 p.m. | 33 minutes ago
Description :Gogs is an open source self-hosted Git service. Prior to 0.14.3, when ENABLE_REVERSE_PROXY_AUTHENTICATION is enabled, Gogs accepts the configured authentication header (default: X-WEBAUTH-USER) directly from client requests without validating that the request originated from a trusted reverse proxy. Any remote attacker who can reach the Gogs service can forge this header to impersonate any user or trigger automatic account creation, completely bypassing authentication. This vulnerability is fixed in 0.14.3.
Severity: 0.0 | NA
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CVE ID :CVE-2026-25119
Published : June 24, 2026, 8:07 p.m. | 33 minutes ago
Description :Gogs is an open source self-hosted Git service. Prior to 0.14.3, when ENABLE_REVERSE_PROXY_AUTHENTICATION is enabled, Gogs accepts the configured authentication header (default: X-WEBAUTH-USER) directly from client requests without validating that the request originated from a trusted reverse proxy. Any remote attacker who can reach the Gogs service can forge this header to impersonate any user or trigger automatic account creation, completely bypassing authentication. This vulnerability is fixed in 0.14.3.
Severity: 0.0 | NA
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CVE-2026-47267 - Gogs: SSRF in webhook deliveries
CVE ID :CVE-2026-47267
Published : June 24, 2026, 8:09 p.m. | 31 minutes ago
Description :Gogs is an open source self-hosted Git service. Prior to 0.14.3, the fix for CVE-2022-1285 prevents adding webooks or running webhooks with URLs with a hostname that resolves in localCIDRs. However, webhooks still follow redirects allowing to access hostname inside localCIDRs. This vulnerability is fixed in 0.14.3.
Severity: 0.0 | NA
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CVE ID :CVE-2026-47267
Published : June 24, 2026, 8:09 p.m. | 31 minutes ago
Description :Gogs is an open source self-hosted Git service. Prior to 0.14.3, the fix for CVE-2022-1285 prevents adding webooks or running webhooks with URLs with a hostname that resolves in localCIDRs. However, webhooks still follow redirects allowing to access hostname inside localCIDRs. This vulnerability is fixed in 0.14.3.
Severity: 0.0 | NA
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CVE-2026-52796 - Gogs: DoS in rendering issue index pattern
CVE ID :CVE-2026-52796
Published : June 24, 2026, 8:13 p.m. | 27 minutes ago
Description :Gogs is an open source self-hosted Git service. Prior to 0.14.3, specially crafted issue index pattern can cause a panic when rendering, resulting in denial of service. In internal/markup/markup.go, RenderIssueIndexPattern renders the issue index pattern to a link using com.Expand, which is not safe: when the configured pattern contains an opening brace { but no closing brace }, strings.Index(template, "}") returns -1 and the subsequent slice template[:-1] triggers a panic. Once such a pattern is set, any page in the affected repository that contains an issue index reference such as #1 becomes unavailable. This vulnerability is fixed in 0.14.3.
Severity: 0.0 | NA
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CVE ID :CVE-2026-52796
Published : June 24, 2026, 8:13 p.m. | 27 minutes ago
Description :Gogs is an open source self-hosted Git service. Prior to 0.14.3, specially crafted issue index pattern can cause a panic when rendering, resulting in denial of service. In internal/markup/markup.go, RenderIssueIndexPattern renders the issue index pattern to a link using com.Expand, which is not safe: when the configured pattern contains an opening brace { but no closing brace }, strings.Index(template, "}") returns -1 and the subsequent slice template[:-1] triggers a panic. Once such a pattern is set, any page in the affected repository that contains an issue index reference such as #1 becomes unavailable. This vulnerability is fixed in 0.14.3.
Severity: 0.0 | NA
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CVE-2026-52798 - Gogs: Stored XSS in `.ipynb` Preview
CVE ID :CVE-2026-52798
Published : June 24, 2026, 8:14 p.m. | 26 minutes ago
Description :Gogs is an open source self-hosted Git service. Prior to 0.14.3, although .ipynb previews are sanitized on the server side via /-/api/sanitize_ipynb, the inserted content is re-rendered on the client side without sanitization using marked() on elements with the .nb-markdown-cell class. During this process, links containing schemes such as javascript: can be regenerated. As a result, when a victim views an attacker-crafted .ipynb file and clicks the link, arbitrary JavaScript is executed in the Gogs origin, leading to a click-based Stored XSS. This vulnerability is fixed in 0.14.3.
Severity: 0.0 | NA
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CVE ID :CVE-2026-52798
Published : June 24, 2026, 8:14 p.m. | 26 minutes ago
Description :Gogs is an open source self-hosted Git service. Prior to 0.14.3, although .ipynb previews are sanitized on the server side via /-/api/sanitize_ipynb, the inserted content is re-rendered on the client side without sanitization using marked() on elements with the .nb-markdown-cell class. During this process, links containing schemes such as javascript: can be regenerated. As a result, when a victim views an attacker-crafted .ipynb file and clicks the link, arbitrary JavaScript is executed in the Gogs origin, leading to a click-based Stored XSS. This vulnerability is fixed in 0.14.3.
Severity: 0.0 | NA
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CVE-2026-52814 - Gogs: Unauthenticated Asymmetric Denial of Service (DoS) via SSH Handshake Stall (File Descriptor Exhaustion)
CVE ID :CVE-2026-52814
Published : June 24, 2026, 8:15 p.m. | 24 minutes ago
Description :Gogs is an open source self-hosted Git service. Prior to 0.14.3, the Gogs built-in Go SSH server is vulnerable to an unauthenticated, asymmetric Denial of Service (DoS) attack. The application accepts inbound TCP connections and passes them to golang.org/x/crypto/ssh.NewServerConn inside a new goroutine without enforcing any read/write deadlines on the underlying net.Conn. An unauthenticated attacker can open multiple TCP connections to the SSH port and simply withhold the SSH protocol banner. This forces the server to spawn an unbounded number of goroutines that block indefinitely waiting for socket I/O. This leads to complete File Descriptor (FD) exhaustion, preventing legitimate users from accessing the Git SSH service, and ultimately destabilizing the entire Gogs process (e.g., causing internal log rotation failures). This vulnerability is fixed in 0.14.3.
Severity: 0.0 | NA
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CVE ID :CVE-2026-52814
Published : June 24, 2026, 8:15 p.m. | 24 minutes ago
Description :Gogs is an open source self-hosted Git service. Prior to 0.14.3, the Gogs built-in Go SSH server is vulnerable to an unauthenticated, asymmetric Denial of Service (DoS) attack. The application accepts inbound TCP connections and passes them to golang.org/x/crypto/ssh.NewServerConn inside a new goroutine without enforcing any read/write deadlines on the underlying net.Conn. An unauthenticated attacker can open multiple TCP connections to the SSH port and simply withhold the SSH protocol banner. This forces the server to spawn an unbounded number of goroutines that block indefinitely waiting for socket I/O. This leads to complete File Descriptor (FD) exhaustion, preventing legitimate users from accessing the Git SSH service, and ultimately destabilizing the entire Gogs process (e.g., causing internal log rotation failures). This vulnerability is fixed in 0.14.3.
Severity: 0.0 | NA
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CVE-2026-52802 - Gogs: Open Redirect via redirect_to in Gogs
CVE ID :CVE-2026-52802
Published : June 24, 2026, 8:17 p.m. | 23 minutes ago
Description :Gogs is an open source self-hosted Git service. Prior to 0.14.3, an open redirect vulnerability exists in Gogs where attacker-controlled redirect_to parameters can bypass validation, allowing redirection to arbitrary external sites. All redirects in Gogs that are validated via the IsSameSite function are vulnerable. The function only inspects the first two characters of the URL string. This check fails to account for directory traversal sequences followed by backslashes. This vulnerability is fixed in 0.14.3.
Severity: 0.0 | NA
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CVE ID :CVE-2026-52802
Published : June 24, 2026, 8:17 p.m. | 23 minutes ago
Description :Gogs is an open source self-hosted Git service. Prior to 0.14.3, an open redirect vulnerability exists in Gogs where attacker-controlled redirect_to parameters can bypass validation, allowing redirection to arbitrary external sites. All redirects in Gogs that are validated via the IsSameSite function are vulnerable. The function only inspects the first two characters of the URL string. This check fails to account for directory traversal sequences followed by backslashes. This vulnerability is fixed in 0.14.3.
Severity: 0.0 | NA
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