CVE-2026-23241 audit: add missing syscalls to read class
Attackers can bypass audit logging rules by using specific extended attribute system calls, hiding file access activities from security monitoring.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-23241?
CVE-2026-23241 is a medium-severity vulnerability in Linux kernel, published on 17 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Which versions are affected by CVE-2026-23241?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-23241?
Apply the vendor's patch.
Is CVE-2026-23241 being exploited?
There is no known exploitation of CVE-2026-23241 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2026-23241, DEBIAN-CVE-2026-23241, GHSA-c2fm-fx6j-95j7, ROOT-OS-UBUNTU-2204-CVE-2026-23241, ROOT-OS-UBUNTU-2404-CVE-2026-23241, UBUNTU-CVE-2026-23241.