What is CVE-2025-2291?

CVE-2025-2291 is a high-severity vulnerability in Pgbouncer, classified under Use of a Key Past its Expiration Date. CVSS score: 8.1/10. Published 2025-04-16.

How severe is CVE-2025-2291?

High severity. CVSS v3 base score is 8.1 out of 10.

Is CVE-2025-2291 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Pgbouncer

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

EPSS: 0.001 (17.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

N/a Pgbouncer — versions 0

Weakness classification (CWE)

CWE-324 — Use of a Key Past its Expiration Date

Public proof-of-concept exploits

w4zu/Debian_

References

www.pgbouncer.org/changelog.html

Frequently asked questions

What is CVE-2025-2291?: CVE-2025-2291 is a high-severity vulnerability in Pgbouncer, classified under Use of a Key Past its Expiration Date. CVSS score: 8.1/10. Published 2025-04-16.
How severe is CVE-2025-2291?: High severity. CVSS v3 base score is 8.1 out of 10.
Is CVE-2025-2291 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.