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

EPSS
0.5% (41st percentile)

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  • Snyk IDSNYK-ALMALINUX8-CONTAINERTOOLS-17999440
  • published17 Jul 2026
  • disclosed7 Jul 2026

Introduced: 7 Jul 2026

CVE-2026-39835  (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-2026:38504.

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.

SSH servers which use CertChecker as a public key callback without setting IsUserAuthority or IsHostAuthority could be caused to panic by a client presenting a certificate. CertChecker now returns an error instead of panicking when these callbacks are nil.

References

CVSS Base Scores

version 3.1