Covert Timing Channel Affecting pgaudit package, versions <0:16.0-1.module+el8.10.0+20413+d8116364


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.56% (43rd percentile)

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  • Snyk IDSNYK-CENTOS8-PGAUDIT-17078236
  • published29 May 2026
  • disclosed14 May 2026

Introduced: 14 May 2026

CVE-2026-6478  (opens in a new tab)
CWE-385  (opens in a new tab)

How to fix?

Upgrade Centos:8 pgaudit to version 0:16.0-1.module+el8.10.0+20413+d8116364 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream pgaudit package and not the pgaudit package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

Covert timing channel in comparison of MD5-hashed password in PostgreSQL authentication allows an attacker to recover user credentials sufficient to authenticate. This does not affect scram-sha-256 passwords, the default in all supported releases. However, current databases may have MD5-hashed passwords originating in upgrades from PostgreSQL 13 or earlier. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.

CVSS Base Scores

version 3.1