CVE-2026-14680 PUBLISHED

PostgreSQL type confusion via "internal" arguments

Assigner: PostgreSQL
Reserved: 03.07.2026 Published: 13.08.2026 Updated: 13.08.2026

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.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 8.8

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	Low	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	n/a
Product	PostgreSQL
Versions	Default: unaffected affected from 18 to 18.5 (excl.) affected from 17 to 17.11 (excl.) affected from 16 to 16.15 (excl.) affected from 15 to 15.19 (excl.) affected from 0 to 14.24 (excl.)

Credits

The PostgreSQL project thanks Amy Burnett (OpenAI Codex Security) for reporting this problem.

References

https://www.postgresql.org/support/security/CVE-2026-14680/

Problem Types

Access of Resource Using Incompatible Type ('Type Confusion') CWE