Buffer overflow in Postgresql
CVE-2026-14670
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 18.5, 17.11, 16…
Vulnerability class: Buffer Overflow
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- N/a Postgresql — versions 18, 17, 16
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-14670?
- CVE-2026-14670 is a high-severity vulnerability in Postgresql, classified under Heap-based Buffer Overflow. CVSS score: 8.8/10. Published 2026-08-13.
- How severe is CVE-2026-14670?
- High severity. CVSS v3 base score is 8.8 out of 10.