Insufficient Logging in Linux kernel - CVE-2026-53367
Published: July 21, 2026
Vulnerability identifier: #VU138898
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-53367
CWE-ID: CWE-778
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to bypass security auditing.
The vulnerability exists due to improper audit logging in the SELinux per-task avdcache when handling inode permission checks. A local user can trigger cached permission checks to bypass security auditing.
Some permission checks may not be audited after a previously cached check for different permissions on the same directory entry.
How to mitigate CVE-2026-53367
Install security update from vendor's repository.