CVE-2026-92873 Auth bypass in Pgpool-II
An unauthenticated attacker can exploit an incorrect authentication algorithm to promote an arbitrary watchdog node to leader status in Pgpool-II.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-92873?
CVE-2026-92873 is a medium-severity authentication bypass vulnerability in Pgpool-II, published on 30 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Pgpool-II contains an incorrect implementation of an authentication algorithm, which may allow an unauthenticated attacker to promote an arbitrary watchdog node to the leader node.
Weakness: CWE-303
Which versions are affected by CVE-2026-92873?
How do I fix CVE-2026-92873?
Apply the vendor's patch.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-92873 being exploited?
There is no known exploitation of CVE-2026-92873 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-92873, GHSA-pxg9-2v62-434q.