Improper Certificate Validation Affecting container-tools:rhel8/buildah package, versions <2:1.33.14-4.module_el8.10.0+4213+0493256b


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

Social Trends
EPSS
0.57% (44th percentile)

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  • Snyk IDSNYK-ALMALINUX8-CONTAINERTOOLS-17890141
  • published8 Jul 2026
  • disclosed9 Jul 2026

Introduced: 8 Jul 2026

CVE-2026-42508  (opens in a new tab)
CWE-295  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 container-tools:rhel8/buildah to version 2:1.33.14-4.module_el8.10.0+4213+0493256b or higher.
This issue was patched in ALSA-2026:35833.

NVD Description

Note: Versions mentioned in the description apply only to the upstream container-tools:rhel8/buildah package and not the container-tools:rhel8/buildah package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

Previously, a revoked 'SignatureKey' belonging to a CA was not correctly checked for revocation. Now, both the 'key' and 'key.SignatureKey' are checked for @revoked.

References

CVSS Base Scores

version 3.1