What’s Vulnerable › Vulnerabilities

CVE-2026-53367: selinux: fix avdcache auditing

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-19 · updated 2026-07-29

Description

In the Linux kernel, the following vulnerability has been resolved: selinux: fix avdcache auditing The per-task avdcache was incorrectly saving and reusing the audited vector computed by avc_audit_required() rather than recomputing based on the currently requested permissions and distinguishing the denied versus allowed cases. As a result, some permission checks were not being audited, e.g. directory write checks after a previously cached directory search check. [PM: line wrap tweaks]

Affected products

• Linux kernel: from 6.17.10 before 6.18; from 6.18.1 before 6.18.30; from 6.19 before 7.0.7; 6.18, 6.18-rc7, 7.1-rc1 — fixed in 6.18, 6.18.30, 7.0.7

How to fix

Upgrade to a fixed version: Linux kernel 6.18, 6.18.30, 7.0.7. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/bce6a32bc888dfebb6a7d4dee454228b71ed8369
• https://git.kernel.org/stable/c/e3e722ea88e051ae5361dc540c01ba18f87b5ffd
• https://git.kernel.org/stable/c/f92d542577db878acfd21cc18dab23d03023b217

Get alerted when CVE-2026-53367 or the next vulnerability affects your stack