CVE-2026-6474
MEDIUM4.3EPSS 0.03%PostgreSQL timeofday() can disclose portions of server memory
Published: 5/14/2026Modified: 5/25/2026
Description
Externally-controlled format string in PostgreSQL timeofday() function allows an attacker to retrieve portions of server memory, via crafted timezone zones. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.
Affected packages (9)
- Alpine/postgresql15from 0, < 15.18-r0
- Alpine/postgresql16from 0, < 16.14-r0
- Alpine/postgresql17from 0, < 17.10-r0
- Alpine/postgresql18from 0, < 18.4-r0
- Bitnami/postgresqlfrom 0, < 14.23.0, >= 15.0.0, < 15.18.0, >= 16.0.0, < 16.14.0, >= 17.0.0, < 17.10.0, >= 18.0.0, < 18.4.0
- Debian/postgresql-13from 0
- Debian/postgresql-15from 0, < 15.18-0+deb12u1
- Debian/postgresql-17from 0, < 17.10-0+deb13u1
- Debian/postgresql-18from 0, < 18.4-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |