VULNERABILITY INTELLIGENCE

CVE-2026-16241

CVSS score3.8 LOW
EPSS probability0.34%
CISA KEVNot currently listed
Published2026-08-13
Last modified2026-08-29
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L

Description

Integer underflow in PostgreSQL ECPG allows a database server administrator to achieve temporary denial of service against the ECPG client via sending a bytea value lacking the mandatory prefix. The client overwrites a huge memory region with bytes outside attacker knowledge or control. This typically yields a simple SIGSEGV, but rare cases might achieve client-specific integrity impact via the write. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

Weakness classification

  • f86ef6dc-4d3a-42ad-8f28-e6d5547a5007: CWE-191

Primary references