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Vulnerability record · CVE-2026-14676 · published 13 August 2026

CVE-2026-14676: Postgresql heap-based buffer overflow vulnerability

Postgresql · Postgresql

Heap buffer overflow in PostgreSQL pg_stat_statements allows the query author to execute arbitrary code as the operating system user running the database, via crafted queries containing array constants. Within major version 18, minor versions before PostgreSQL 18.6 are affected. Versions before PostgreSQL 18 are unaffected.

8.8 CVSS 3.1 High EPSS 0.44% · top 64.7% CWE-122 · Heap-based buffer overflow
8.8CVSS 3.1 base score
0.44%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
29 Aug 2026Last modified by NVD

Description

Heap buffer overflow in PostgreSQL pg_stat_statements allows the query author to execute arbitrary code as the operating system user running the database, via crafted queries containing array constants. Within major version 18, minor versions before PostgreSQL 18.6 are affected. Versions before PostgreSQL 18 are unaffected.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.postgresql.org/support/security/CVE-2026-14676/ Vendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2026-14676), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.