VulnerabilityAnalyzed

CVE-2025-2291

Password can be used past expiry in PgBouncer due to auth_query not taking into account Postgres its VALID UNTIL value, which allows an attacker to log in with an already expired password

CRITICAL 9.8EPSS 0.36%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.36%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Password can be used past expiry in PgBouncer due to auth_query not taking into account Postgres its VALID UNTIL value, which allows an attacker to log in with an already expired password

CVSS 3.1: 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.36% probability · 30th percentile
CISA KEV: Not listed
Weakness: CWE-324
Affected: pgbouncer/pgbouncer · debian/debian linux
Source: f86ef6dc-4d3a-42ad-8f28-e6d5547a5007

References

https://www.pgbouncer.org/changelog.html#pgbouncer-124xRelease Notes
https://lists.debian.org/debian-lts-announce/2025/05/msg00032.htmlMailing List, Third Party Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.