CVE-2026-14670

Published: Aug 13, 2026Modified: Aug 29, 2026

8.8

Vector

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

Exploitability: 2.8 / Impact: 5.9

Source: f86ef6dc-4d3a-42ad-8f28-e6d5547a5007 (Secondary)

Description

Heap buffer overflow in PostgreSQL plperl return of a tied hash allows the function owner to execute arbitrary code as the operating system user running the database, via a crafted function body. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

Affected (5)

Products: Postgresql: Postgresql

Postgresql

1 product

Postgresql

Configuration A

5 vulnerable

Vulnerable Software	Affected Versions
Postgresql Postgresql	14.0 ≤ version < 14.24
Postgresql Postgresql	15.0 ≤ version < 15.19
Postgresql Postgresql	16.0 ≤ version < 16.15
Postgresql Postgresql	17.0 ≤ version < 17.11
Postgresql Postgresql	18.0 ≤ version < 18.5

Related CWEs

CWE-122

Heap-based Buffer Overflow

A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

References (1)

https://www.postgresql.org/support/security/CVE-2026-14670/

Source: f86ef6dc-4d3a-42ad-8f28-e6d5547a5007

Vendor Advisory

Timeline

No history available yet.