CVE-2026-54229 Abrt: chownproblemdir succeeds during active post-create event processing due to inadequate locking
A race condition in abrt-dbus allows attackers to gain filesystem control over dump directories during event processing, leading to privilege escalation.
- 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-2026-54229?
CVE-2026-54229 is a high-severity vulnerability in Red Hat Enterprise Linux 6, published on 13 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A race condition was found in the abrt-dbus D-Bus service's ChownProblemDir method. ChownProblemDir opens the dump directory with DD_OPEN_READONLY and calls dd_chown to change ownership of all files to the caller's uid, succeeding even while post-create event handlers hold a write lock. This allows an attacker to gain filesystem-level control of the dump directory while privileged event scripts are still running.
Weakness: CWE-362
Which versions are affected by CVE-2026-54229?
How do I fix CVE-2026-54229?
Apply the vendor's patch.
Is CVE-2026-54229 being exploited?
There is no known exploitation of CVE-2026-54229 in the wild and no public exploit code.
Sources
Also known as GHSA-c3cq-8jxp-w66j.