CVE Monitor
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{
"Source": "CVE FEED",
"Title": "CVE-2025-66171 - Apache CloudStack: Any user can create a new VM from backups they should not have access to",
"Content": "CVE ID :CVE-2025-66171
Published : May 8, 2026, 12:11 p.m. | 1 hour, 12 minutes ago
Description :The CloudStack Backup plugin has an improper access logic in versions 4.21.0.0 and 4.22.0.0. Anyone with authenticated user-account access in CloudStack 4.21.0.0+ environments, where this plugin is enabled and have access to specific APIs can create new VMs using backups of any other user of the environment.

Backup plugin users using CloudStack 4.21.0.0+ are recommended to upgrade to CloudStack version 4.22.0.1, which fixes this issue.
Severity: 0.0 | NA
Visit the link for more details, such as CVSS details, affected products, timeline, and more...",
"Detection Date": "08 May 2026",
"Type": "Vulnerability"
}
๐Ÿ”น t.me/cvedetector ๐Ÿ”น
{
"Source": "CVE FEED",
"Title": "CVE-2025-66170 - Apache CloudStack: Any user can list backups that they should not have access to",
"Content": "CVE ID :CVE-2025-66170
Published : May 8, 2026, 12:06 p.m. | 1 hour, 17 minutes ago
Description :The CloudStack Backup plugin has an improper authorization logic in versions 4.21.0.0 and 4.22.0.0. Anyone with authenticated user-account access in CloudStack 4.21.0.0+ environments, where this plugin is enabled and has access to specific APIs can list backups from any account in the environment. This vulnerability does not allow them to see the contents of the backup.

Users are recommended to upgrade to version 4.22.0.1, which fixes the issue.
Severity: 0.0 | NA
Visit the link for more details, such as CVSS details, affected products, timeline, and more...",
"Detection Date": "08 May 2026",
"Type": "Vulnerability"
}
๐Ÿ”น t.me/cvedetector ๐Ÿ”น
{
"Source": "CVE FEED",
"Title": "CVE-2026-44500 - ZEBRA: Allocation Amplification in Inbound Network Deserializers",
"Content": "CVE ID :CVE-2026-44500
Published : May 8, 2026, 3:10 p.m. | 18 minutes ago
Description :ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.4.0, prior to zebra-chain version 7.0.0, and prior to zebra-network version 6.0.0, several inbound deserialization paths in Zebra allocated buffers sized against generic transport or block-size ceilings before the tighter protocol or consensus limits were enforced. An unauthenticated or post-handshake peer could therefore force the node to preallocate and parse for orders of magnitude more data than the protocol intended, across headers messages, equihash solutions in block headers, Sapling spend vectors in V5/V4 transactions, and coinbase script bytes in blocks. This issue has been patched in zebrad version 4.4.0, zebra-chain version 7.0.0, and zebra-network version 6.0.0.
Severity: 0.0 | NA
Visit the link for more details, such as CVSS details, affected products, timeline, and more...",
"Detection Date": "08 May 2026",
"Type": "Vulnerability"
}
๐Ÿ”น t.me/cvedetector ๐Ÿ”น
{
"Source": "CVE FEED",
"Title": "CVE-2026-44498 - ZEBRA: Block Validator Undercounts Coinbase and P2SH Sigops",
"Content": "CVE ID :CVE-2026-44498
Published : May 8, 2026, 3:09 p.m. | 19 minutes ago
Description :ZEBRA is a Zcash node written entirely in Rust. Prior to version 4.4.0, Zebra's block validator undercounts transparent signature operations against the 20000-sigop block limit (MAX_BLOCK_SIGOPS), allowing it to accept blocks that zcashd rejects with bad-blk-sigops. A miner who produces such a block can split the network: Zebra nodes follow the offending chain while zcashd nodes do not. This issue has been patched in version 4.4.0.
Severity: 0.0 | NA
Visit the link for more details, such as CVSS details, affected products, timeline, and more...",
"Detection Date": "08 May 2026",
"Type": "Vulnerability"
}
๐Ÿ”น t.me/cvedetector ๐Ÿ”น
{
"Source": "CVE FEED",
"Title": "CVE-2026-44497 - ZEBRA: Consensus Divergence in Transparent Sighash Hash-Type Handling due to Stale Buffer",
"Content": "CVE ID :CVE-2026-44497
Published : May 8, 2026, 3:08 p.m. | 20 minutes ago
Description :ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.4.0 and prior to zebra-script version 6.0.0, the fix for CVE-2026-41583 introduced a separate issue due to insufficient error handling of the case where the sighash type is invalid, during sighash computation. Instead of returning an error, the normal flow would resume, and the input sighash buffer would be left untouched. In scenarios where a previous signature validation could leave a valid sighash in the buffer, an invalid hash-type could be incorrectly accepted, which would create a consensus split between Zebra and zcashd nodes. This issue has been patched in zebrad version 4.4.0 and zebra-script version 6.0.0.
Severity: 0.0 | NA
Visit the link for more details, such as CVSS details, affected products, timeline, and more...",
"Detection Date": "08 May 2026",
"Type": "Vulnerability"
}
๐Ÿ”น t.me/cvedetector ๐Ÿ”น
{
"Source": "CVE FEED",
"Title": "CVE-2026-41585 - ZEBRA: Denial of Service via Interrupted JSON-RPC Requests from Authenticated Clients",
"Content": "CVE ID :CVE-2026-41585
Published : May 8, 2026, 3:06 p.m. | 22 minutes ago
Description :ZEBRA is a Zcash node written entirely in Rust. From zebrad versions 2.2.0 to before 4.3.1 and from zebra-rpc versions 1.0.0-beta.45 to before 6.0.2, a vulnerability in Zebra's JSON-RPC HTTP middleware allows an authenticated RPC client to cause a Zebra node to crash by disconnecting before the request body is fully received. The node treats the failure to read the HTTP request body as an unrecoverable error and aborts the process instead of returning an error response. This issue has been patched in zebrad version 4.3.1 and zebra-rpc version 6.0.2.
Severity: 0.0 | NA
Visit the link for more details, such as CVSS details, affected products, timeline, and more...",
"Detection Date": "08 May 2026",
"Type": "Vulnerability"
}
๐Ÿ”น t.me/cvedetector ๐Ÿ”น
{
"Source": "CVE FEED",
"Title": "CVE-2026-41584 - ZEBRA: rk Identity Point Panic in Transaction Verification",
"Content": "CVE ID :CVE-2026-41584
Published : May 8, 2026, 3:05 p.m. | 23 minutes ago
Description :ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.3.1 and prior to zebra-chain version 6.0.2, Orchard transactions contain a rk field which is a randomized validating key and also an elliptic curve point. The Zcash specification allows the field to be the identity (a "zero" value), however, the orchard crate which is used to verify Orchard proofs would panic when fed a rk with the identity value. Thus an attacker could send a crafted transaction that would make a Zebra node crash. This issue has been patched in zebrad version 4.3.1 and zebra-chain version 6.0.2.
Severity: 0.0 | NA
Visit the link for more details, such as CVSS details, affected products, timeline, and more...",
"Detection Date": "08 May 2026",
"Type": "Vulnerability"
}
๐Ÿ”น t.me/cvedetector ๐Ÿ”น
{
"Source": "CVE FEED",
"Title": "CVE-2026-41583 - ZEBRA: Consensus Divergence in Transparent Sighash Hash-Type Handling",
"Content": "CVE ID :CVE-2026-41583
Published : May 8, 2026, 2:55 p.m. | 32 minutes ago
Description :ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.3.1 and prior to zebra-script version 5.0.2, after a refactoring, Zebra failed to validate a consensus rule that restricted the possible values of sighash hash types for V5 transactions which were enabled in the NU5 network upgrade. Zebra nodes could thus accept and eventually mine a block that would be considered invalid by zcashd nodes, creating a consensus split between Zebra and zcashd nodes. In a similar vein, for V4 transactions, Zebra mistakenly used the "canonical" hash type when computing the sighash while zcashd (correctly per the spec) uses the raw value, which could also crate a consensus split. This issue has been patched in zebrad version 4.3.1 and zebra-script version 5.0.2.
Severity: 0.0 | NA
Visit the link for more details, such as CVSS details, affected products, timeline, and more...",
"Detection Date": "08 May 2026",
"Type": "Vulnerability"
}
๐Ÿ”น t.me/cvedetector ๐Ÿ”น
{
"Source": "CVE FEED",
"Title": "CVE-2026-41588 - RELATE: Timing Attack Vulnerability in course/auth.py โ€” check_sign_in_key()",
"Content": "CVE ID :CVE-2026-41588
Published : May 8, 2026, 2:51 p.m. | 37 minutes ago
Description :RELATE is a web-based courseware package. Prior to commit 2f68e16, there is a timing attack vulnerability in course/auth.py โ€” check_sign_in_key(). This issue has been patched via commit 2f68e16.
Severity: 0.0 | NA
Visit the link for more details, such as CVSS details, affected products, timeline, and more...",
"Detection Date": "08 May 2026",
"Type": "Vulnerability"
}
๐Ÿ”น t.me/cvedetector ๐Ÿ”น
{
"Source": "CVE FEED",
"Title": "CVE-2026-41576 - Ajax30/BraveCMS-2.0: Stored HTML Injection in Contact Email via nl2br() and Unescaped Blade Template",
"Content": "CVE ID :CVE-2026-41576
Published : May 8, 2026, 2:50 p.m. | 37 minutes ago
Description :Brave CMS is an open-source CMS. Prior to commit 6c56603, the contact form is publicly accessible (no authentication required). User-supplied message text is passed through PHP's nl2br() function, which converts newlines to
tags but does not escape HTML. The resulting string is then passed to a Blade email template using the unescaped {!! $msg !!} directive. The resulting content is then rendered in a Blade email template using the unescaped {!! $msg !!} directive. Because HTML is not sanitized, arbitrary markup can be injected into the email body. While modern HTML-capable email clients (Gmail or Outlook Web) typically block JavaScript execution, they still render HTML content. This allows attackers to craft convincing phishing interfaces inside the email sent to the administrator. This issue has been patched via commit 6c56603.
Severity: 0.0 | NA
Visit the link for more details, such as CVSS details, affected products, timeline, and more...",
"Detection Date": "08 May 2026",
"Type": "Vulnerability"
}
๐Ÿ”น t.me/cvedetector ๐Ÿ”น
{
"Source": "CVE FEED",
"Title": "CVE-2026-41524 - Ajax30/BraveCMS-2.0: Stored XSS in Page / Article Content",
"Content": "CVE ID :CVE-2026-41524
Published : May 8, 2026, 2:50 p.m. | 38 minutes ago
Description :Brave CMS is an open-source CMS. Prior to commit 6c56603, page and article body content entered through the CKEditor rich-text editor is stored verbatim in the database and subsequently rendered with Laravel Blade's unescaped output directive {!! !!}. Any JavaScript or HTML injected by an editor-role user is permanently stored and executed in every visitor's browser upon page load. This issue has been patched via commit 6c56603.
Severity: 0.0 | NA
Visit the link for more details, such as CVSS details, affected products, timeline, and more...",
"Detection Date": "08 May 2026",
"Type": "Vulnerability"
}
๐Ÿ”น t.me/cvedetector ๐Ÿ”น
{
"Source": "CVE FEED",
"Title": "CVE-2026-41575 - th30d4y/IP: DOM-Based Cross-Site Scripting (XSS) Vulnerability",
"Content": "CVE ID :CVE-2026-41575
Published : May 8, 2026, 2:42 p.m. | 46 minutes ago
Description :In th30d4y/IP from version 1.0.1 to before version 2.0.1, a DOM-Based Cross-Site Scripting (XSS) vulnerability was identified in an IP Reputation Checker application. Unsanitized user input was directly rendered in the browser, allowing attackers to execute arbitrary JavaScript. This issue has been patched in version 2.0.1.
Severity: 0.0 | NA
Visit the link for more details, such as CVSS details, affected products, timeline, and more...",
"Detection Date": "08 May 2026",
"Type": "Vulnerability"
}
๐Ÿ”น t.me/cvedetector ๐Ÿ”น
{
"Source": "CVE FEED",
"Title": "CVE-2026-41574 - Nhost Vulnerable to Account Takeover via OAuth Email Verification Bypass",
"Content": "CVE ID :CVE-2026-41574
Published : May 8, 2026, 2:40 p.m. | 48 minutes ago
Description :Nhost is an open source Firebase alternative with GraphQL. Prior to version 0.49.1, Nhost automatically links an incoming OAuth identity to an existing Nhost account when the email addresses match. This is only safe when the email has been verified by the OAuth provider. Nhost's controller trusts a profile.EmailVerified boolean that is set by each provider adapter. The vulnerability is that several provider adapters do not correctly populate this field they either silently drop a verified field the provider API actually returns (Discord), or they fall back to accepting unconfirmed emails and marking them as verified (Bitbucket). Two Microsoft providers (AzureAD, EntraID) derive the email from non-ownership-proving fields like the user principal name, then mark it verified. The result is that an attacker can present an email they don't own to Nhost, have the OAuth identity merged into the victim's account, and receive a full authenticated session. This issue has been patched in version 0.49.1.
Severity: 0.0 | NA
Visit the link for more details, such as CVSS details, affected products, timeline, and more...",
"Detection Date": "08 May 2026",
"Type": "Vulnerability"
}
๐Ÿ”น t.me/cvedetector ๐Ÿ”น
{
"Source": "CVE FEED",
"Title": "CVE-2026-41570 - PHPUnit: Argument injection via newline in PHP INI values forwarded to child processes",
"Content": "CVE ID :CVE-2026-41570
Published : May 8, 2026, 2:33 p.m. | 54 minutes ago
Description :PHPUnit is a testing framework for PHP. In versions 12.5.21 and 13.1.5, PHPUnit forwards PHP INI settings to child processes (used for isolated/PHPT test execution) as -d name=value command-line arguments without neutralizing INI metacharacters. Because PHP's INI parser interprets " as a string delimiter, ; as the start of a comment, and most importantly a newline as a directive separator, a value containing a newline is parsed by the child process as multiple INI directives. An attacker able to influence a single INI value can therefore inject arbitrary additional directives into the child's configuration, including auto_prepend_file, extension, disable_functions, open_basedir, and others. Setting auto_prepend_file to an attacker-controlled path yields remote code execution in the child process. This issue has been patched in versions 12.5.22 and 13.1.6.
Severity: 0.0 | NA
Visit the link for more details, such as CVSS details, affected products, timeline, and more...",
"Detection Date": "08 May 2026",
"Type": "Vulnerability"
}
๐Ÿ”น t.me/cvedetector ๐Ÿ”น
{
"Source": "CVE FEED",
"Title": "CVE-2026-41308 - Password Pusher: JSON API `/p.json` file upload alias bypasses file-push authentication",
"Content": "CVE ID :CVE-2026-41308
Published : May 8, 2026, 2:30 p.m. | 57 minutes ago
Description :Password Pusher is an open source application to communicate sensitive information over the web. Prior to versions 1.69.3 and 2.4.2, a security issue in OSS PasswordPusher allowed unauthenticated creation of file-type pushes through a generic JSON API create path under certain configurations. This could bypass the intended authentication boundary for file push creation. This issue has been patched in versions 1.69.3 and 2.4.2.
Severity: 0.0 | NA
Visit the link for more details, such as CVSS details, affected products, timeline, and more...",
"Detection Date": "08 May 2026",
"Type": "Vulnerability"
}
๐Ÿ”น t.me/cvedetector ๐Ÿ”น
{
"Source": "CVE FEED",
"Title": "CVE-2026-41487 - Langfuse: Improper role-based-access control in Langfuse LLM connection management allowed users of role โ€œmemberโ€ to retrieve stored LLM provider API keys",
"Content": "CVE ID :CVE-2026-41487
Published : May 8, 2026, 2:27 p.m. | 1 hour ago
Description :Langfuse is an open source large language model engineering platform. From version 3.68.0 to before version 3.167.0, there is a role-based-access control flaw in the LLM connection update flow. An authenticated, low-privileged user of role โ€œmemberโ€ in a project could request the update of an existing LLM connection to an attacker-controlled baseUrl, causing Langfuse to reuse the stored provider secret and redirect the test request to an attacker-controlled endpoint. This could expose the plaintext provider LLM API key for that connection. The attack is only possible if a user is already part of a project and has โ€œmemberโ€ scoped access. This issue has been patched in version 3.167.0.
Severity: 0.0 | NA
Visit the link for more details, such as CVSS details, affected products, timeline, and more...",
"Detection Date": "08 May 2026",
"Type": "Vulnerability"
}
๐Ÿ”น t.me/cvedetector ๐Ÿ”น
{
"Source": "CVE FEED",
"Title": "CVE-2026-43475 - scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT",
"Content": "CVE ID :CVE-2026-43475
Published : May 8, 2026, 2:22 p.m. | 1 hour, 5 minutes ago
Description :In the Linux kernel, the following vulnerability has been resolved:

scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT

This resolves the follow splat and lock-up when running with PREEMPT_RT
enabled on Hyper-V:

[ 415.140818] BUG: scheduling while atomic: stress-ng-iomix/1048/0x00000002
[ 415.140822] INFO: lockdep is turned off.
[ 415.140823] Modules linked in: intel_rapl_msr intel_rapl_common intel_uncore_frequency_common intel_pmc_core pmt_telemetry pmt_discovery pmt_class intel_pmc_ssram_telemetry intel_vsec ghash_clmulni_intel aesni_intel rapl binfmt_misc nls_ascii nls_cp437 vfat fat snd_pcm hyperv_drm snd_timer drm_client_lib drm_shmem_helper snd sg soundcore drm_kms_helper pcspkr hv_balloon hv_utils evdev joydev drm configfs efi_pstore nfnetlink vsock_loopback vmw_vsock_virtio_transport_common hv_sock vmw_vsock_vmci_transport vsock vmw_vmci efivarfs autofs4 ext4 crc16 mbcache jbd2 sr_mod sd_mod cdrom hv_storvsc serio_raw hid_generic scsi_transport_fc hid_hyperv scsi_mod hid hv_netvsc hyperv_keyboard scsi_common
[ 415.140846] Preemption disabled at:
[ 415.140847] [] storvsc_queuecommand+0x2e1/0xbe0 [hv_storvsc]
[ 415.140854] CPU: 8 UID: 0 PID: 1048 Comm: stress-ng-iomix Not tainted 6.19.0-rc7 #30 PREEMPT_{RT,(full)}
[ 415.140856] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS Hyper-V UEFI Release v4.1 09/04/2024
[ 415.140857] Call Trace:
[ 415.140861]
[ 415.140861] ? storvsc_queuecommand+0x2e1/0xbe0 [hv_storvsc]
[ 415.140863] dump_stack_lvl+0x91/0xb0
[ 415.140870] __schedule_bug+0x9c/0xc0
[ 415.140875] __schedule+0xdf6/0x1300
[ 415.140877] ? rtlock_slowlock_locked+0x56c/0x1980
[ 415.140879] ? rcu_is_watching+0x12/0x60
[ 415.140883] schedule_rtlock+0x21/0x40
[ 415.140885] rtlock_slowlock_locked+0x502/0x1980
[ 415.140891] rt_spin_lock+0x89/0x1e0
[ 415.140893] hv_ringbuffer_write+0x87/0x2a0
[ 415.140899] vmbus_sendpacket_mpb_desc+0xb6/0xe0
[ 415.140900] ? rcu_is_watching+0x12/0x60
[ 415.140902] storvsc_queuecommand+0x669/0xbe0 [hv_storvsc]
[ 415.140904] ? HARDIRQ_verbose+0x10/0x10
[ 415.140908] ? __rq_qos_issue+0x28/0x40
[ 415.140911] scsi_queue_rq+0x760/0xd80 [scsi_mod]
[ 415.140926] __blk_mq_issue_directly+0x4a/0xc0
[ 415.140928] blk_mq_issue_direct+0x87/0x2b0
[ 415.140931] blk_mq_dispatch_queue_requests+0x120/0x440
[ 415.140933] blk_mq_flush_plug_list+0x7a/0x1a0
[ 415.140935] __blk_flush_plug+0xf4/0x150
[ 415.140940] __submit_bio+0x2b2/0x5c0
[ 415.140944] ? submit_bio_noacct_nocheck+0x272/0x360
[ 415.140946] submit_bio_noacct_nocheck+0x272/0x360
[ 415.140951] ext4_read_bh_lock+0x3e/0x60 [ext4]
[ 415.140995] ext4_block_write_begin+0x396/0x650 [ext4]
[ 415.141018] ? __pfx_ext4_da_get_block_prep+0x10/0x10 [ext4]
[ 415.141038] ext4_da_write_begin+0x1c4/0x350 [ext4]
[ 415.141060] generic_perform_write+0x14e/0x2c0
[ 415.141065] ext4_buffered_write_iter+0x6b/0x120 [ext4]
[ 415.141083] vfs_write+0x2ca/0x570
[ 415.141087] ksys_write+0x76/0xf0
[ 415.141089] do_syscall_64+0x99/0x1490
[ 415.141093] ? rcu_is_watching+0x12/0x60
[ 415.141095] ? finish_task_switch.isra.0+0xdf/0x3d0
[ 415.141097] ? rcu_is_watching+0x12/0x60
[ 415.141098] ? lock_release+0x1f0/0x2a0
[ 415.141100] ? rcu_is_watching+0x12/0x60
[ 415.141101] ? finish_task_switch.isra.0+0xe4/0x3d0
[ 415.141103] ? rcu_is_watching+0x12/0x60
[ 415.141104] ? __schedule+0xb34/0x1300
[ 415.141106] ? hrtimer_try_to_cancel+0x1d/0x170
[ 415.141109] ? do_nanosleep+0x8b/0x160
[ 415.141111] ? hrtimer_nanosleep+0x89/0x100
[ 415.141114] ? __pfx_hrtimer_wakeup+0x10/0x10
[ 415.141116] ? xfd_validate_state+0x26/0x90
[ 415.141118] ? rcu_is_watching+0x12/0x60
[ 415.141120] ? do_syscall_64+0x1e0/0x1490
[ 415.141121] ? [...]
CVE Monitor
{ "Source": "CVE FEED", "Title": "CVE-2026-43475 - scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT", "Content": "CVE ID :CVE-2026-43475 Published : May 8, 2026, 2:22 p.m. | 1 hour, 5 minutes ago Description :In the Linux kernel, the followingโ€ฆ
do_syscall_64+0x1e0/0x1490
[ 415.141123] ? rcu_is_watching+0x12/0x60
[ 415.141124] ? do_syscall_64+0x1e0/0x1490
[ 415.141125] ? do_syscall_64+0x1e0/0x1490
[ 415.141127] ? irqentry_exit+0x140/0
---truncated---
Severity: 0.0 | NA
Visit the link for more details, such as CVSS details, affected products, timeline, and more...",
"Detection Date": "08 May 2026",
"Type": "Vulnerability"
}
๐Ÿ”น t.me/cvedetector ๐Ÿ”น
{
"Source": "CVE FEED",
"Title": "CVE-2026-43473 - scsi: mpi3mr: Add NULL checks when resetting request and reply queues",
"Content": "CVE ID :CVE-2026-43473
Published : May 8, 2026, 2:22 p.m. | 1 hour, 5 minutes ago
Description :In the Linux kernel, the following vulnerability has been resolved:

scsi: mpi3mr: Add NULL checks when resetting request and reply queues

The driver encountered a crash during resource cleanup when the reply and
request queues were NULL due to freed memory. This issue occurred when the
creation of reply or request queues failed, and the driver freed the memory
first, but attempted to mem set the content of the freed memory, leading to
a system crash.

Add NULL pointer checks for reply and request queues before accessing the
reply/request memory during cleanup
Severity: 0.0 | NA
Visit the link for more details, such as CVSS details, affected products, timeline, and more...",
"Detection Date": "08 May 2026",
"Type": "Vulnerability"
}
๐Ÿ”น t.me/cvedetector ๐Ÿ”น
{
"Source": "CVE FEED",
"Title": "CVE-2026-43474 - fs: init flags_valid before calling vfs_fileattr_get",
"Content": "CVE ID :CVE-2026-43474
Published : May 8, 2026, 2:22 p.m. | 1 hour, 5 minutes ago
Description :In the Linux kernel, the following vulnerability has been resolved:

fs: init flags_valid before calling vfs_fileattr_get

syzbot reported a uninit-value bug in [1].

Similar to the "*get" context where the kernel's internal file_kattr
structure is initialized before calling vfs_fileattr_get(), we should
use the same mechanism when using fa.

[1]
BUG: KMSAN: uninit-value in fuse_fileattr_get+0xeb4/0x1450 fs/fuse/ioctl.c:517
fuse_fileattr_get+0xeb4/0x1450 fs/fuse/ioctl.c:517
vfs_fileattr_get fs/file_attr.c:94 [inline]
__do_sys_file_getattr fs/file_attr.c:416 [inline]

Local variable fa.i created at:
__do_sys_file_getattr fs/file_attr.c:380 [inline]
__se_sys_file_getattr+0x8c/0xbd0 fs/file_attr.c:372
Severity: 0.0 | NA
Visit the link for more details, such as CVSS details, affected products, timeline, and more...",
"Detection Date": "08 May 2026",
"Type": "Vulnerability"
}
๐Ÿ”น t.me/cvedetector ๐Ÿ”น
{
"Source": "CVE FEED",
"Title": "CVE-2026-43472 - unshare: fix unshare_fs() handling",
"Content": "CVE ID :CVE-2026-43472
Published : May 8, 2026, 2:22 p.m. | 1 hour, 6 minutes ago
Description :In the Linux kernel, the following vulnerability has been resolved:

unshare: fix unshare_fs() handling

There's an unpleasant corner case in unshare(2), when we have a
CLONE_NEWNS in flags and current->fs hadn't been shared at all; in that
case copy_mnt_ns() gets passed current->fs instead of a private copy,
which causes interesting warts in proof of correctness]

> I guess if private means fs->users == 1, the condition could still be true.

Unfortunately, it's worse than just a convoluted proof of correctness.
Consider the case when we have CLONE_NEWCGROUP in addition to CLONE_NEWNS
(and current->fs->users == 1).

We pass current->fs to copy_mnt_ns(), all right. Suppose it succeeds and
flips current->fs->{pwd,root} to corresponding locations in the new namespace.
Now we proceed to copy_cgroup_ns(), which fails (e.g. with -ENOMEM).
We call put_mnt_ns() on the namespace created by copy_mnt_ns(), it's
destroyed and its mount tree is dissolved, but... current->fs->root and
current->fs->pwd are both left pointing to now detached mounts.

They are pinning those, so it's not a UAF, but it leaves the calling
process with unshare(2) failing with -ENOMEM _and_ leaving it with
pwd and root on detached isolated mounts. The last part is clearly a bug.

There is other fun related to that mess (races with pivot_root(), including
the one between pivot_root() and fork(), of all things), but this one
is easy to isolate and fix - treat CLONE_NEWNS as "allocate a new
fs_struct even if it hadn't been shared in the first place". Sure, we could
go for something like "if both CLONE_NEWNS *and* one of the things that might
end up failing after copy_mnt_ns() call in create_new_namespaces() are set,
force allocation of new fs_struct", but let's keep it simple - the cost
of copy_fs_struct() is trivial.

Another benefit is that copy_mnt_ns() with CLONE_NEWNS *always* gets
a freshly allocated fs_struct, yet to be attached to anything. That
seriously simplifies the analysis...

FWIW, that bug had been there since the introduction of unshare(2) ;-/
Severity: 0.0 | NA
Visit the link for more details, such as CVSS details, affected products, timeline, and more...",
"Detection Date": "08 May 2026",
"Type": "Vulnerability"
}
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