CVE-2026-6473 Affecting postgresql:15/postgresql-private-devel package, versions <0:15.18-1.module_el8.10.0+4195+4569d728


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

Social Trends
EPSS
0.67% (48th percentile)

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  • Snyk IDSNYK-ALMALINUX8-POSTGRESQL-17372347
  • published18 Jun 2026
  • disclosed22 Jun 2026

Introduced: 18 Jun 2026

NewCVE-2026-6473  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 postgresql:15/postgresql-private-devel to version 0:15.18-1.module_el8.10.0+4195+4569d728 or higher.
This issue was patched in ALSA-2026:26181.

NVD Description

Note: Versions mentioned in the description apply only to the upstream postgresql:15/postgresql-private-devel package and not the postgresql:15/postgresql-private-devel package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1