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
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | PgBouncer | < 1.24.1 | 1.24.1 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | pgbouncer | 1.24.1-1 | — |
| Debian 13 | pgbouncer | 1.24.1-1 | — |
| Debian 12 | pgbouncer | 1.18.0-1+deb12u1 | — |
| Debian 11 | pgbouncer | 1.15.0-1+deb11u1 | DLA-4180-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 25.10 | pgbouncer | No fix yet | — |
| Ubuntu 24.04 LTS | pgbouncer | No fix yet | — |
| Ubuntu 22.04 LTS | pgbouncer | No fix yet | — |
| Ubuntu 20.04 LTS | pgbouncer | No fix yet | — |
| Ubuntu 18.04 LTS | pgbouncer | No fix yet | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | pgbouncer | No fix yet | — |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | pgbouncer | 1.24.1-1 | — |
| Azure Linux 2 (CBL-Mariner) | pgbouncer | 1.24.1-1 | — |
Advisories 2
- DLA-4180-1 pgbouncer - security update Debian Security (DSA / DLA) · Mar 9, 2026
- WID-SEC-2025-0842 PgBouncer: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen BSI CERT-Bund (WID) · May 26, 2025