CVE-2026-14680

PostgreSQL type confusion via "internal" arguments

Published Aug 13, 2026 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Description
Type confusion with PostgreSQL "internal" data type arguments allows any user to execute arbitrary code as the operating system user running the database, via calls to functions with that argument type. Type "internal" represents a class of mutually-incompatible data structures not intended for access from SQL. The system intended to prevent such function calls, but this prevention had gaps. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4740-1 postgresql-15 security update
Debian DSA Debian DSA DSA-6438-1 postgresql-17 security update
Ubuntu USN Ubuntu USN USN-8653-1 PostgreSQL vulnerabilities
History
Type Values Removed Values Added
Description Type confusion with PostgreSQL "internal" data type arguments allows any user to execute arbitrary code as the operating system user running the database, via calls to functions with that argument type. Type "internal" represents a class of mutually-incompatible data structures not intended for access from SQL. The system intended to prevent such function calls, but this prevention had gaps. Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected. Type confusion with PostgreSQL "internal" data type arguments allows any user to execute arbitrary code as the operating system user running the database, via calls to functions with that argument type. Type "internal" represents a class of mutually-incompatible data structures not intended for access from SQL. The system intended to prevent such function calls, but this prevention had gaps. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.
Type Values Removed Values Added
CPEs cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Postgresql
Postgresql postgresql
Vendors & Products Postgresql
Postgresql postgresql
Type Values Removed Values Added
Description Type confusion with PostgreSQL "internal" data type arguments allows any user to execute arbitrary code as the operating system user running the database, via calls to functions with that argument type. Type "internal" represents a class of mutually-incompatible data structures not intended for access from SQL. The system intended to prevent such function calls, but this prevention had gaps. Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.
Title PostgreSQL type confusion via "internal" arguments
Weaknesses CWE-843
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
PostgreSQL
Published
Updated
Aug 29, 2026, 11:07 PM
Reserved
Jul 3, 2026, 8:28 PM
Status
Modified
Published
Aug 13, 2026, 1:17 PM
Modified
Aug 29, 2026, 11:17 PM