Integer overflow in Postgresql
CVE-2026-14662
Integer wraparound in PostgreSQL tsvector and tsquery data type functions allows an unprivileged database user to cause the server to undersize an allocation and write out-of-bounds, via crafted large inputs. This may execute arbitrary co…
Vulnerability class: Integer 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-2026-14662?
- CVE-2026-14662 is a high-severity vulnerability in Postgresql, classified under Integer Overflow or Wraparound. CVSS score: 8.8/10. Published 2026-08-13.
- How severe is CVE-2026-14662?
- High severity. CVSS v3 base score is 8.8 out of 10.