VulnerabilityPublished 17 Mar 2026Updated 5 Nov 2026

CVE-2026-23241: Linux kernel · audit: add missing syscalls to read class

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in bcb90a2834c7393c26df9609b889a3097b7700cd : update Linux kernel when convenient.

Data as of 5 Nov 2026, 21:49 UTC

Severity

Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none

Exploitation: No evidence of active exploitation and no public proof of concept
Automatable: Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact: Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-11-05.

Patch

Available – fixed in bcb90a2834c7393c26df9609b889a3097b7700cd, ad37505ce869a8100ff23f24eea117de7a7516bf, a2e8c144299c31d3972295ed80d4cb908daf4f6f

Exploitation evidence

Disclosed: evidence found.
CVE published 17 Mar 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade Linux kernel to bcb90a2834c7393c26df9609b889a3097b7700cd, ad37505ce869a8100ff23f24eea117de7a7516bf or a2e8c144299c31d3972295ed80d4cb908daf4f6f.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 6140be90ec70c39fa844741ca3cc807dd0866394, < bcb90a2834c7393c26df9609b889a3097b7700cd	Fixed in bcb90a2834c7393c26df9609b889a3097b7700cd
LinuxLinux	Affected ≥ 6140be90ec70c39fa844741ca3cc807dd0866394, < ad37505ce869a8100ff23f24eea117de7a7516bf	Fixed in ad37505ce869a8100ff23f24eea117de7a7516bf
LinuxLinux	Affected ≥ 6140be90ec70c39fa844741ca3cc807dd0866394, < a2e8c144299c31d3972295ed80d4cb908daf4f6f	Fixed in a2e8c144299c31d3972295ed80d4cb908daf4f6f
LinuxLinux	Affected =6.13	Fixed in–

Description

In the Linux kernel, the following vulnerability has been resolved: audit: add missing syscalls to read class The "at" variant of getxattr() and listxattr() are missing from the audit read class. Calling getxattrat() or listxattrat() on a file to read its extended attributes will bypass audit rules such as: -w /tmp/test -p rwa -k test_rwa The current patch adds missing syscalls to the audit read class.

References

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