PT-2026-25886 · Linux · Linux Kernel

Jeffrey Bencteux · Published 2026-01-01 · Updated 2026-05-20 · CVE-2026-23241

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The Linux kernel has an issue where the 'at' variant of the getxattr() and listxattr() system calls are not included in the audit read class. This allows bypassing audit rules when calling getxattrat() or listxattrat() on a file to read its extended attributes. Specifically, rules defined with the -w option, such as -w /tmp/test -p rwa -k test rwa, may be circumvented. The current patch addresses this by adding the missing system calls to the audit read class.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Related Identifiers

CVE-2026-23241

Affected Products

Linux Kernel

References · 25

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23241.json · Exploit
• https://ubuntu.com/security/CVE-2026-23241 · Vendor Advisory
• https://git.kernel.org/stable/c/ad37505ce869a8100ff23f24eea117de7a7516bf · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-23241 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-23241 · Security Note
• https://osv.dev/vulnerability/CVE-2026-23241 · Vendor Advisory
• https://git.kernel.org/stable/c/a2e8c144299c31d3972295ed80d4cb908daf4f6f · Patch
• https://security-tracker.debian.org/tracker/CVE-2026-23241 · Vendor Advisory
• https://git.kernel.org/stable/c/bcb90a2834c7393c26df9609b889a3097b7700cd · Patch
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2404-CVE-2026-23241 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-23241 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-23241 · Security Note
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2204-CVE-2026-23241 · Vendor Advisory
• https://git.kernel.org/stable/c/f5d27ad99fcaa7d965b344dd0b00d9413585c3cb · Note
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note