Buffer overflow in Postgresql

CVE-2026-19385

Heap buffer overflow in PostgreSQL pg_dump of long function transform lists allows an object creator to execute arbitrary code as the operating system user running pg_dump, via a crafted transform list. Versions before PostgreSQL 18.5, 17…

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-2026-19385?
CVE-2026-19385 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-2026-19385?
High severity. CVSS v3 base score is 8.8 out of 10.