VULNERABILITY INTELLIGENCE

CVE-2026-6473

CVSS score8.8 HIGH
EPSS probability1.01%
CISA KEVNot currently listed
Published2026-05-14
Last modified2026-08-25
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

Integer wraparound in multiple PostgreSQL server features allows an unprivileged database user to cause the server to undersize an allocation and write out-of-bounds. This may execute arbitrary code as the operating system user running the database. In applications that pass gigabyte-scale user inputs to the relevant database functions, the application input provider may achieve a segmentation fault. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.

Weakness classification

  • f86ef6dc-4d3a-42ad-8f28-e6d5547a5007: CWE-190
  • 0b0ca135-0b70-47e7-9f44-1890c2a1c46c: CWE-190

Primary references