CVE-2026-75037 Polkit authentication bypass in LACT
An authentication bypass in LACT allows local attackers to escalate privileges by exploiting Polkit UnixProcessSubject checks.
- 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-2026-75037?
CVE-2026-75037 is a high-severity authentication bypass vulnerability in ilya-zlobintsev LACT, published on 25 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Polkit Authentication Based on UnixProcessSubject / Peer PID in LACT on Linux allows an Authentication Bypass. This issue affects LACT through 0.10.0. Fixed by commit d0478fe42c2219454e272f96b1cbd29ab37ee566.
Weakness: CWE-290
Which versions are affected by CVE-2026-75037?
How do I fix CVE-2026-75037?
Apply the vendor's patch.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-75037 being exploited?
There is no known exploitation of CVE-2026-75037 in the wild and no public exploit code.
Sources
Also known as GHSA-w75p-534p-fxmc.