CVE-2026-18408: PostgreSQL, верига на доставки

Описание

Оригинално описание

Untrusted data inclusion in pg_dump in PostgreSQL allows a malicious superuser of the origin server to inject arbitrary code for restore-time execution as the client operating system account running psql to restore the dump, via psql \restrict meta-command input expansion. The fix for CVE-2025-8714 introduced \restrict and \unrestrict to block this attack, but \unrestrict itself was sufficient for an attack. pg_dumpall is also affected. pg_restore is affected when used to generate a plain-format dump. Non-core use of \restrict would be affected, but we've not identified non-core use. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

Засегнати продукти

• n/a PostgreSQL: 18 преди 18.6; 17 преди 17.11; 16 преди 16.15; 15 преди 15.19; преди 14.24

Вид слабост

• CWE-829 Inclusion of Functionality from Untrusted Control Sphere

История

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-18408
• https://nvd.nist.gov/vuln/detail/CVE-2026-18408
• https://www.postgresql.org/support/security/CVE-2026-18408/