🚨 CVE-2026-46712
Misskey is an open source, federated social media platform. Versions 2025.3.2 and later, but prior to 2026.5.4, contain a vulnerability where a lack of proper permission checks allows access to certain data points from the Direct Messages (formerly Chat) feature, regardless of account permissions. This vulnerability occurs whether or not federation is enabled. Notes created with "specified" visibility (formerly "direct" visibility) are not affected. This issue has been fixed in version 2026.5.4.
🎖@cveNotify
Misskey is an open source, federated social media platform. Versions 2025.3.2 and later, but prior to 2026.5.4, contain a vulnerability where a lack of proper permission checks allows access to certain data points from the Direct Messages (formerly Chat) feature, regardless of account permissions. This vulnerability occurs whether or not federation is enabled. Notes created with "specified" visibility (formerly "direct" visibility) are not affected. This issue has been fixed in version 2026.5.4.
🎖@cveNotify
GitHub
Release 2026.5.4 · misskey-dev/misskey
General
セキュリティに関する修正
GHSA-2m3r-xx7x-63j6 (CVE-2026-46712)
GHSA-w8x2-gpq6-jxvf (CVE-2026-46713)
GHSA-38jx-423m-g387 (CVE-2026-47746)
GHSA-wmhf-m93m-rgmj (CVE-2026-46714)
GHSA-j49q-76hx-mv8f (CVE-2...
セキュリティに関する修正
GHSA-2m3r-xx7x-63j6 (CVE-2026-46712)
GHSA-w8x2-gpq6-jxvf (CVE-2026-46713)
GHSA-38jx-423m-g387 (CVE-2026-47746)
GHSA-wmhf-m93m-rgmj (CVE-2026-46714)
GHSA-j49q-76hx-mv8f (CVE-2...
🚨 CVE-2026-46713
Misskey is an open source, federated social media platform. Versions 12.37.0 and later, but prior to 2026.5.4, contain a vulnerability in the JSON-LD signature validation and compaction process that allows spoofed activities to be accepted as valid. This issue has been fixed in version 2026.5.4.
🎖@cveNotify
Misskey is an open source, federated social media platform. Versions 12.37.0 and later, but prior to 2026.5.4, contain a vulnerability in the JSON-LD signature validation and compaction process that allows spoofed activities to be accepted as valid. This issue has been fixed in version 2026.5.4.
🎖@cveNotify
GitHub
Release 2026.5.4 · misskey-dev/misskey
General
セキュリティに関する修正
GHSA-2m3r-xx7x-63j6 (CVE-2026-46712)
GHSA-w8x2-gpq6-jxvf (CVE-2026-46713)
GHSA-38jx-423m-g387 (CVE-2026-47746)
GHSA-wmhf-m93m-rgmj (CVE-2026-46714)
GHSA-j49q-76hx-mv8f (CVE-2...
セキュリティに関する修正
GHSA-2m3r-xx7x-63j6 (CVE-2026-46712)
GHSA-w8x2-gpq6-jxvf (CVE-2026-46713)
GHSA-38jx-423m-g387 (CVE-2026-47746)
GHSA-wmhf-m93m-rgmj (CVE-2026-46714)
GHSA-j49q-76hx-mv8f (CVE-2...
🚨 CVE-2026-47746
Misskey is an open source, federated social media platform. Versions 12.37.0 and later, but prior to 2026.5.4, are vulnerable to timing attacks during JSON-LD signature validation and the compaction process. Because the JSON-LD parsing context is not shared between signature verification and subsequent processing, the application may trust information that should not be trusted, resulting in a time-of-check to time-of-use (TOCTOU) flaw. This allows an attacker to have fraudulent activities accepted as valid, leading to a loss of integrity. This issue has been fixed in version 2026.5.4.
🎖@cveNotify
Misskey is an open source, federated social media platform. Versions 12.37.0 and later, but prior to 2026.5.4, are vulnerable to timing attacks during JSON-LD signature validation and the compaction process. Because the JSON-LD parsing context is not shared between signature verification and subsequent processing, the application may trust information that should not be trusted, resulting in a time-of-check to time-of-use (TOCTOU) flaw. This allows an attacker to have fraudulent activities accepted as valid, leading to a loss of integrity. This issue has been fixed in version 2026.5.4.
🎖@cveNotify
GitHub
Release 2026.5.4 · misskey-dev/misskey
General
セキュリティに関する修正
GHSA-2m3r-xx7x-63j6 (CVE-2026-46712)
GHSA-w8x2-gpq6-jxvf (CVE-2026-46713)
GHSA-38jx-423m-g387 (CVE-2026-47746)
GHSA-wmhf-m93m-rgmj (CVE-2026-46714)
GHSA-j49q-76hx-mv8f (CVE-2...
セキュリティに関する修正
GHSA-2m3r-xx7x-63j6 (CVE-2026-46712)
GHSA-w8x2-gpq6-jxvf (CVE-2026-46713)
GHSA-38jx-423m-g387 (CVE-2026-47746)
GHSA-wmhf-m93m-rgmj (CVE-2026-46714)
GHSA-j49q-76hx-mv8f (CVE-2...
🚨 CVE-2026-48115
Misskey is an open source, federated social media platform. All Misskey servers running versions 2024.5.0 and later, but prior to 2026.5.4, contain a vulnerability in the Server Announcements API where insufficient permission checks allow attackers to access limited portions of data that they normally couldn't view. This vulnerability occurs whether or not federation is enabled. This issue has been fixed in version 2026.5.4.
🎖@cveNotify
Misskey is an open source, federated social media platform. All Misskey servers running versions 2024.5.0 and later, but prior to 2026.5.4, contain a vulnerability in the Server Announcements API where insufficient permission checks allow attackers to access limited portions of data that they normally couldn't view. This vulnerability occurs whether or not federation is enabled. This issue has been fixed in version 2026.5.4.
🎖@cveNotify
GitHub
Release 2026.5.4 · misskey-dev/misskey
General
セキュリティに関する修正
GHSA-2m3r-xx7x-63j6 (CVE-2026-46712)
GHSA-w8x2-gpq6-jxvf (CVE-2026-46713)
GHSA-38jx-423m-g387 (CVE-2026-47746)
GHSA-wmhf-m93m-rgmj (CVE-2026-46714)
GHSA-j49q-76hx-mv8f (CVE-2...
セキュリティに関する修正
GHSA-2m3r-xx7x-63j6 (CVE-2026-46712)
GHSA-w8x2-gpq6-jxvf (CVE-2026-46713)
GHSA-38jx-423m-g387 (CVE-2026-47746)
GHSA-wmhf-m93m-rgmj (CVE-2026-46714)
GHSA-j49q-76hx-mv8f (CVE-2...
🚨 CVE-2026-67616
Camaleon CMS through 2.9.2, fixed in commit 88ab703, contains a missing authorization vulnerability on the drafts endpoint that allows any authenticated low-privileged user to create draft posts by bypassing role and permission checks. Attackers can send requests to the drafts endpoint using only session authentication to create unauthorized drafts that appear in the administrative drafts queue.
🎖@cveNotify
Camaleon CMS through 2.9.2, fixed in commit 88ab703, contains a missing authorization vulnerability on the drafts endpoint that allows any authenticated low-privileged user to create draft posts by bypassing role and permission checks. Attackers can send requests to the drafts endpoint using only session authentication to create unauthorized drafts that appear in the administrative drafts queue.
🎖@cveNotify
GitHub
Merge pull request #1196 from owen2345/security/fix-draft-authorization · owen2345/camaleon-cms@88ab703
Fix improper authorization in draft autosave endpoint
🚨 CVE-2026-67617
Microweber CMS through 2.0.20 contains a stored cross-site scripting vulnerability in the content tagging system that allows admin-authenticated attackers to inject arbitrary JavaScript by submitting malicious payloads via the tag_names parameter of the GET /api/save_content_admin endpoint, bypassing three independent sanitization controls including XSS middleware that ignores GET requests, a strip_unsafe() function that only matches double-quoted onerror attributes, and a titlecase normalizer that passes HTML decimal entity-encoded payloads through unchanged. Attackers can store malicious scripts that execute without user interaction for every visitor to the public blog page and within the admin post editor, enabling session riding through same-origin fetch requests using the CSRF token embedded in the page.
🎖@cveNotify
Microweber CMS through 2.0.20 contains a stored cross-site scripting vulnerability in the content tagging system that allows admin-authenticated attackers to inject arbitrary JavaScript by submitting malicious payloads via the tag_names parameter of the GET /api/save_content_admin endpoint, bypassing three independent sanitization controls including XSS middleware that ignores GET requests, a strip_unsafe() function that only matches double-quoted onerror attributes, and a titlecase normalizer that passes HTML decimal entity-encoded payloads through unchanged. Attackers can store malicious scripts that execute without user interaction for every visitor to the public blog page and within the admin post editor, enabling session riding through same-origin fetch requests using the CSRF token embedded in the page.
🎖@cveNotify
GitHub
GitHub - theopaid/Stored-XSS-via-Content-Tag-Names-Microweber-: Security Advisory: Stored XSS via Content Tag Names - Microweber…
Security Advisory: Stored XSS via Content Tag Names - Microweber CMS 2.0.20 - theopaid/Stored-XSS-via-Content-Tag-Names-Microweber-
🚨 CVE-2026-67969
An issue in the HS_MonitorApplications() component of NASA cFS v7.0.1 allows attackers to force the processor to reset via supplying a crafted HS.AppMon_Tbl entry.
🎖@cveNotify
An issue in the HS_MonitorApplications() component of NASA cFS v7.0.1 allows attackers to force the processor to reset via supplying a crafted HS.AppMon_Tbl entry.
🎖@cveNotify
GitHub
GitHub - nasa/cFS: The Core Flight System (cFS)
The Core Flight System (cFS). Contribute to nasa/cFS development by creating an account on GitHub.
🚨 CVE-2026-67970
Incorrect access control in the DS_SetDestPathCmd() component of NASA cFS v7.0.1 allows attackers to access sensitive components via a path traversal.
🎖@cveNotify
Incorrect access control in the DS_SetDestPathCmd() component of NASA cFS v7.0.1 allows attackers to access sensitive components via a path traversal.
🎖@cveNotify
GitHub
[SECURITY] DS basename field allows path traversal without modifying pathname · Issue #1072 · nasa/cFS
Checklist (Please check before submitting) I reviewed the Contributing Guide. I performed a cursory search to see if the bug report is relevant, not redundant, nor in conflict with other tickets. D...
🚨 CVE-2026-67973
An issue in the CFDP receive path of NASA cFS v7.0.1 allows attackers to cause a Denial of Service (DoS) via replaying final CFDP PDUs.
🎖@cveNotify
An issue in the CFDP receive path of NASA cFS v7.0.1 allows attackers to cause a Denial of Service (DoS) via replaying final CFDP PDUs.
🎖@cveNotify
GitHub
GitHub - nasa/cFS: The Core Flight System (cFS)
The Core Flight System (cFS). Contribute to nasa/cFS development by creating an account on GitHub.
🚨 CVE-2026-67974
A parser boundary flaw in the Software Bus Network (SBN) application's peer subscription message handling in NASA cFS v7.0.1 allows attackers to cause a Denial of Service (DoS) via sending a crafted packet.
🎖@cveNotify
A parser boundary flaw in the Software Bus Network (SBN) application's peer subscription message handling in NASA cFS v7.0.1 allows attackers to cause a Denial of Service (DoS) via sending a crafted packet.
🎖@cveNotify
GitHub
GitHub - nasa/cFS: The Core Flight System (cFS)
The Core Flight System (cFS). Contribute to nasa/cFS development by creating an account on GitHub.
🚨 CVE-2026-67975
Incorrect access control in NASA cFS v7.0.1 allows attackers to arbitrarily remove low-index subscriptions and add new streams via sending TO_LAB add/remove subscription commands.
🎖@cveNotify
Incorrect access control in NASA cFS v7.0.1 allows attackers to arbitrarily remove low-index subscriptions and add new streams via sending TO_LAB add/remove subscription commands.
🎖@cveNotify
GitHub
GitHub - nasa/cFS: The Core Flight System (cFS)
The Core Flight System (cFS). Contribute to nasa/cFS development by creating an account on GitHub.
🚨 CVE-2026-67977
An integer overflow in the Svc::FileDownlink::SendPartial component of fprime framework v4.2.2 allows attackers to cause a Denial of Service (DoS) via a crafted input.
🎖@cveNotify
An integer overflow in the Svc::FileDownlink::SendPartial component of fprime framework v4.2.2 allows attackers to cause a Denial of Service (DoS) via a crafted input.
🎖@cveNotify
GitHub
CVE-2026-67977:SendPartial Integer Overflow Leading to Assertion DoS · Issue #1 · freedomfoxvare/cve
Summary Svc::FileDownlink::SendPartial uses unchecked U32 addition during bounds validation. A crafted startOffset and length can wrap around, bypass the intended range check, and later trigger a r...
🚨 CVE-2026-69247
cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. From 44.0.0 until 50.0.0, pkcs7_decrypt_der, pkcs7_decrypt_pem, and pkcs7_decrypt_smime reported the outcome of decrypting a RecipientInfo's encryptedKey in several distinguishable ways, one of which disclosed the exact length recovered from the RSA operation. The same distinction was also observable by timing. An application that decrypts attacker-supplied EnvelopedData and reflects the outcome gives the attacker a Bleichenbacher oracle against the content-encryption key. Decryption ran as RSA PKCS#1 v1.5 decrypt of encryptedKey, build an AES cipher from the result, then AES-CBC decrypt and PKCS#7 unpad. Invalid RSA padding, a valid padding with a bad key length, a correct length with a wrong key, and the real key each failed or succeeded differently. Case 1 is reachable only where the linked library lacks implicit rejection: OpenSSL 3.0 and 3.1, LibreSSL, and BoringSSL. Exploitation requires a service that auto-decrypts untrusted EnvelopedData matching the victim certificate and answers adaptively at high volume, such as an S/MIME gateway or mail filter. This issue is fixed in 50.0.0.
🎖@cveNotify
cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. From 44.0.0 until 50.0.0, pkcs7_decrypt_der, pkcs7_decrypt_pem, and pkcs7_decrypt_smime reported the outcome of decrypting a RecipientInfo's encryptedKey in several distinguishable ways, one of which disclosed the exact length recovered from the RSA operation. The same distinction was also observable by timing. An application that decrypts attacker-supplied EnvelopedData and reflects the outcome gives the attacker a Bleichenbacher oracle against the content-encryption key. Decryption ran as RSA PKCS#1 v1.5 decrypt of encryptedKey, build an AES cipher from the result, then AES-CBC decrypt and PKCS#7 unpad. Invalid RSA padding, a valid padding with a bad key length, a correct length with a wrong key, and the real key each failed or succeeded differently. Case 1 is reachable only where the linked library lacks implicit rejection: OpenSSL 3.0 and 3.1, LibreSSL, and BoringSSL. Exploitation requires a service that auto-decrypts untrusted EnvelopedData matching the victim certificate and answers adaptively at high volume, such as an S/MIME gateway or mail filter. This issue is fixed in 50.0.0.
🎖@cveNotify
GitHub
Don't leak how PKCS#7 encryptedKey decryption failed (#15369) · pyca/cryptography@53fccd9
* Don't leak how PKCS#7 encryptedKey decryption failed
pkcs7_decrypt_der and its PEM and S/MIME variants reported invalid RSA
PKCS#1 v1.5 padding, a recovered key of the wrong length, and ...
pkcs7_decrypt_der and its PEM and S/MIME variants reported invalid RSA
PKCS#1 v1.5 padding, a recovered key of the wrong length, and ...
🚨 CVE-2026-69248
cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Prior to 49.0.0, if an intermediate constrained CA permits the DNS name foo.example.com, and the leaf certificate has a wildcard in its DNS SAN of *.example.com, python-cryptography's verifier accepts which allows escaping outside of the permitted names. The core issue is in DNSConstraint::matches, where a wildcard pattern was treated as matching a more-specific permitted constraint even though *.example.com can expand to sibling names such as bar.example.com outside foo.example.com. This allows acceptance of an invalid certificate chain. This issue is fixed in 49.0.0.
🎖@cveNotify
cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Prior to 49.0.0, if an intermediate constrained CA permits the DNS name foo.example.com, and the leaf certificate has a wildcard in its DNS SAN of *.example.com, python-cryptography's verifier accepts which allows escaping outside of the permitted names. The core issue is in DNSConstraint::matches, where a wildcard pattern was treated as matching a more-specific permitted constraint even though *.example.com can expand to sibling names such as bar.example.com outside foo.example.com. This allows acceptance of an invalid certificate chain. This issue is fixed in 49.0.0.
🎖@cveNotify
GitHub
x509: distinguish NC kinds when evaluating wildcard DNS SANs (#14888) · pyca/cryptography@4d035a4
* x509: distinguish NC kinds when evaluating wildcard DNS SANs
* Bump x509-limbo
* Bump x509-limbo
🚨 CVE-2026-69249
python-cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Prior to 49.0.0, when resolving invalid certificate chains that include duplicate copies of self-signed certificates, the processing recursively invokes the same candidate, leading to an exponential blowup. Although the limitation that the chain depth cannot exceed a specified maximum depth prevents unbounded recursion and guarantees termination, an attacker-controlled certificate chain can lead the processing to easily take more than 5s to reject in testing. This amplification could form the basis for a resource exhaustion denial of service attack. The core issue arises in the recursive nature of build_chain_inner, which does not de-duplicate against previously analyzed candidates. As the correctness of validation is not affected, the integrity of a system cannot be compromised through this vector, only its availability. This issue is fixed in 49.0.0.
🎖@cveNotify
python-cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Prior to 49.0.0, when resolving invalid certificate chains that include duplicate copies of self-signed certificates, the processing recursively invokes the same candidate, leading to an exponential blowup. Although the limitation that the chain depth cannot exceed a specified maximum depth prevents unbounded recursion and guarantees termination, an attacker-controlled certificate chain can lead the processing to easily take more than 5s to reject in testing. This amplification could form the basis for a resource exhaustion denial of service attack. The core issue arises in the recursive nature of build_chain_inner, which does not de-duplicate against previously analyzed candidates. As the correctness of validation is not affected, the integrity of a system cannot be compromised through this vector, only its availability. This issue is fixed in 49.0.0.
🎖@cveNotify
GitHub
Add a signature validation budget during path construction (#14960) · pyca/cryptography@4a12cf4
* Add a signature validation budget during path construction
This extends our existing NC budget check to include a budget
for signature validations. If a path construction exceeds the
budget by p...
This extends our existing NC budget check to include a budget
for signature validations. If a path construction exceeds the
budget by p...
🚨 CVE-2025-2786
A flaw was found in Tempo Operator, where it creates a ServiceAccount, ClusterRole, and ClusterRoleBinding when a user deploys a TempoStack or TempoMonolithic instance. This flaw allows a user with full access to their namespace to extract the ServiceAccount token and use it to submit TokenReview and SubjectAccessReview requests, potentially revealing information about other users' permissions. While this does not allow privilege escalation or impersonation, it exposes information that could aid in gathering information for further attacks.
🎖@cveNotify
A flaw was found in Tempo Operator, where it creates a ServiceAccount, ClusterRole, and ClusterRoleBinding when a user deploys a TempoStack or TempoMonolithic instance. This flaw allows a user with full access to their namespace to extract the ServiceAccount token and use it to submit TokenReview and SubjectAccessReview requests, potentially revealing information about other users' permissions. While this does not allow privilege escalation or impersonation, it exposes information that could aid in gathering information for further attacks.
🎖@cveNotify
🚨 CVE-2025-2842
A flaw was found in the Tempo Operator. When the Jaeger UI Monitor Tab functionality is enabled in a Tempo instance managed by the Tempo Operator, the Operator creates a ClusterRoleBinding for the Service Account of the Tempo instance to grant the cluster-monitoring-view ClusterRole.
This can be exploited if a user has 'create' permissions on TempoStack and 'get' permissions on Secret in a namespace (for example, a user has ClusterAdmin permissions for a specific namespace), as the user can read the token of the Tempo service account and therefore has access to see all cluster metrics.
🎖@cveNotify
A flaw was found in the Tempo Operator. When the Jaeger UI Monitor Tab functionality is enabled in a Tempo instance managed by the Tempo Operator, the Operator creates a ClusterRoleBinding for the Service Account of the Tempo instance to grant the cluster-monitoring-view ClusterRole.
This can be exploited if a user has 'create' permissions on TempoStack and 'get' permissions on Secret in a namespace (for example, a user has ClusterAdmin permissions for a specific namespace), as the user can read the token of the Tempo service account and therefore has access to see all cluster metrics.
🎖@cveNotify
🚨 CVE-2025-5914
A vulnerability has been identified in the libarchive library, specifically within the archive_read_format_rar_seek_data() function. This flaw involves an integer overflow that can ultimately lead to a double-free condition. Exploiting a double-free vulnerability can result in memory corruption, enabling an attacker to execute arbitrary code or cause a denial-of-service condition.
🎖@cveNotify
A vulnerability has been identified in the libarchive library, specifically within the archive_read_format_rar_seek_data() function. This flaw involves an integer overflow that can ultimately lead to a double-free condition. Exploiting a double-free vulnerability can result in memory corruption, enabling an attacker to execute arbitrary code or cause a denial-of-service condition.
🎖@cveNotify
🚨 CVE-2026-48864
A flaw was found in libsolv. This heap buffer overflow occurs during the decompression of attacker-controlled compressed data within `.solv` files due to insufficient input validation. An attacker can provide a specially crafted `.solv` file, which, when processed by a vulnerable application, can lead to out-of-bounds memory access. This could result in information disclosure, alteration of program execution, or a denial of service.
🎖@cveNotify
A flaw was found in libsolv. This heap buffer overflow occurs during the decompression of attacker-controlled compressed data within `.solv` files due to insufficient input validation. An attacker can provide a specially crafted `.solv` file, which, when processed by a vulnerable application, can lead to out-of-bounds memory access. This could result in information disclosure, alteration of program execution, or a denial of service.
🎖@cveNotify
🚨 CVE-2026-9804
A flaw was found in KubeVirt's virt-exportserver component. An attacker with specific namespace-level access can exploit a path traversal vulnerability in the VMExport directory endpoint. By placing a symbolic link (symlink) within an exported filesystem Persistent Volume Claim (PVC) that points outside its designated mount root, the attacker can read arbitrary files from the exporter pod's filesystem. This leads to information disclosure, potentially exposing sensitive data.
🎖@cveNotify
A flaw was found in KubeVirt's virt-exportserver component. An attacker with specific namespace-level access can exploit a path traversal vulnerability in the VMExport directory endpoint. By placing a symbolic link (symlink) within an exported filesystem Persistent Volume Claim (PVC) that points outside its designated mount root, the attacker can read arbitrary files from the exporter pod's filesystem. This leads to information disclosure, potentially exposing sensitive data.
🎖@cveNotify
🚨 CVE-2026-18667
A vulnerability in Tenable Sensor Proxy allows a remote attacker to execute code with elevated privileges by inducing an operator to connect the sensor to an attacker-controlled host.
🎖@cveNotify
A vulnerability in Tenable Sensor Proxy allows a remote attacker to execute code with elevated privileges by inducing an operator to connect the sensor to an attacker-controlled host.
🎖@cveNotify
Tenable®
[R1] Sensor Proxy Version 1.4.2 Fixes One Vulnerability
A vulnerability in Tenable Sensor Proxy allows a remote attacker to execute code with elevated privileges by inducing an operator to connect the sensor to an attacker-controlled host.