CVE-2026-120153

PostgreSQL extension-script substitutions allow SQL injection through object names

Published Nov 12, 2026 CVSS 3.1 · 7.2 High EPSS n/a KEV · Not listed
Description
SQL injection in PostgreSQL extension-script substitutions allows an attacker with database-level CREATE privilege to execute arbitrary code as the bootstrap superuser, via a schema or owner name containing newlines or other special substrings. This is similar to CVE-2023-39417, but it requires a non-bundled extension with a vulnerable script pattern. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Postgresql
Postgresql postgresql
Vendors & Products Postgresql
Postgresql postgresql
References
Metrics threat_severity

None

threat_severity

Important

Type Values Removed Values Added
Description SQL injection in PostgreSQL extension-script substitutions allows an attacker with database-level CREATE privilege to execute arbitrary code as the bootstrap superuser, via a schema or owner name containing newlines or other special substrings. This is similar to CVE-2023-39417, but it requires a non-bundled extension with a vulnerable script pattern. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.
Title PostgreSQL extension-script substitutions allow SQL injection through object names
Weaknesses CWE-89
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
PostgreSQL
Published
Updated
Nov 13, 2026, 5:02 AM
Reserved
Oct 30, 2026, 10:45 PM
Status
Awaiting Analysis
Published
Nov 12, 2026, 3:17 PM
Modified
Nov 13, 2026, 5:18 AM
Severity
Important
Public date
Nov 12, 2026, 2:15 PM