CVE-2026-16241 Affecting postgresql-16 package, versions <16.15-0ubuntu0.24.04.1


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.2% (10th percentile)

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  • Snyk IDSNYK-UBUNTU2404-POSTGRESQL16-18769411
  • published21 Aug 2026
  • disclosed13 Aug 2026

Introduced: 13 Aug 2026

CVE-2026-16241  (opens in a new tab)

How to fix?

Upgrade Ubuntu:24.04 postgresql-16 to version 16.15-0ubuntu0.24.04.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream postgresql-16 package and not the postgresql-16 package as distributed by Ubuntu. See How to fix? for Ubuntu:24.04 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1