CVE-2026-6476
HIGH7.2EPSS 0.03%PostgreSQL pg_createsubscriber allows SQL injection via subscription name
Published: 5/14/2026Modified: 5/19/2026
Also known as:ALPINE-CVE-2026-6476
Description
SQL injection in PostgreSQL pg_createsubscriber allows an attacker with pg_create_subscription rights to execute arbitrary SQL as a superuser. The attack takes effect when pg_createsubscriber next runs. Within major versions 17 and 18, minor versions before PostgreSQL 18.4 and 17.10 are affected. Versions before PostgreSQL 17 are unaffected.
Affected packages (5)
- Alpine/postgresql17from 0, < 17.10-r0
- Alpine/postgresql18from 0, < 18.4-r0
- Bitnami/postgresql>= 17.0.0, < 17.10.0, >= 18.0.0, < 18.4.0
- 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 | HIGH7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |