8.8

CVE-2026-18408

Medienbericht

PostgreSQL psql \unrestrict lets superuser of pg_dump origin server execute arbitrary code in psql client

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 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Postgresql ≫ Postgresql Version >= 14.0 < 14.24
Postgresql ≫ Postgresql Version >= 15.0 < 15.19
Postgresql ≫ Postgresql Version >= 16.0 < 16.15
Postgresql ≫ Postgresql Version >= 17.0 < 17.11
Postgresql ≫ Postgresql Version >= 18.0 < 18.5
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.53% 0.42
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
f86ef6dc-4d3a-42ad-8f28-e6d5547a5007 8.8 2.8 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE-829 Inclusion of Functionality from Untrusted Control Sphere

The product imports, requires, or includes executable functionality (such as a library) from a source that is outside of the intended control sphere.

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Media Report
17.08.2026 12:30
https://www.postgresql.org/support/security/CVE-2026-18408/
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