CVE-2026-15789 Affecting buildah package, versions <2:1.43.3-2.el9_8


Severity

Recommended
0.0
high
0
10

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.31% (24th percentile)

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  • Snyk IDSNYK-ALMALINUX9-BUILDAH-20137802
  • published25 Sept 2026
  • disclosed23 Sept 2026

Introduced: 23 Sep 2026

NewCVE-2026-15789  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:9 buildah to version 2:1.43.3-2.el9_8 or higher.
This issue was patched in ALSA-2026:70640.

NVD Description

Note: Versions mentioned in the description apply only to the upstream buildah package and not the buildah package as distributed by AlmaLinux. See How to fix? for AlmaLinux:9 relevant fixed versions and status.

A custom client can produce such an upload request to the BuildKit daemon that files can escape from the BuildKit-controlled state directory. The client needs to have valid permissions to access the BuildKit control API to issue builds, e.g., bypass authentication, etc.

CVSS Base Scores

version 3.1