Description
Pgpool-II provided by PgPool Global Development Group contains an authentication bypass by primary weakness vulnerability. if the vulnerability is exploited, an attacker may be able to log in to the system as an arbitrary user, allowing them to read or tamper with data in the database, and/or disable the database.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| PgPool Global Development Group | Pgpool-II | 4.6.0, 4.5.0 to 4.5.6, 4.4.0 to 4.4.11, 4.3.0 to 4.3.14, 4.2.0 to 4.2.21, All versions of 4.1 series, All versions of 4.0 series | — |
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 | pgpool2 | 4.6.1-1 | — |
| Debian 13 | pgpool2 | 4.6.1-1 | — |
| Debian 12 | pgpool2 | 4.3.5-1+deb12u1 | DSA-5974-1 |
| Debian 11 | pgpool2 | 4.1.4-3+deb11u2 | DLA-4334-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 25.10 | pgpool2 | No fix yet | — |
| Ubuntu 24.04 LTS | pgpool2 | No fix yet | — |
| Ubuntu 22.04 LTS | pgpool2 | No fix yet | — |
| Ubuntu 20.04 LTS | pgpool2 | No fix yet | — |
| Ubuntu 16.04 LTS | pgpool2 | No fix yet | — |
Advisories 2
- DSA-5974-1 pgpool2 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-4334-1 pgpool2 - security update Debian Security (DSA / DLA) · Oct 16, 2025