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VULNERABILITIES

CVE-2026-6473 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: redhat-SADPCVSS-B:8.8 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://access.redhat.com/errata/RHSA-2026:22878 redhat-SADP
https://access.redhat.com/errata/RHSA-2026:26181 redhat-SADP
https://access.redhat.com/errata/RHSA-2026:26203 redhat-SADP
https://access.redhat.com/errata/RHSA-2026:26204 redhat-SADP
https://access.redhat.com/errata/RHSA-2026:26524 redhat-SADP

see all 38 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-190Integer Overflow or Wraparoundredhat-SADP
CWE-190Integer Overflow or WraparoundPostgreSQL

Affected Products

ProductVersions
postgresql postgresql
< 14.23
>= 15.0, < 15.18
>= 16.0, < 16.14
>= 17.0, < 17.10
>= 18.0, < 18.4

CPE

  • cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

15 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-6473
NVD Published Date:
May 14, 2026
NVD Last Modified:
Aug 25, 2026
Source:
PostgreSQL
CVE-2026-6473 Details - Not Deferred