CVE-2026-42504 Affecting osbuild-composer-debuginfo package, versions <0:165.1-4.el9_8.1.rocky.0.1


Severity

Recommended
high

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.56% (43rd percentile)

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  • Snyk IDSNYK-ROCKY9-OSBUILDCOMPOSERDEBUGINFO-19661181
  • published10 Sept 2026
  • disclosed2 Jun 2026

Introduced: 2 Jun 2026

CVE-2026-42504  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:9 osbuild-composer-debuginfo to version 0:165.1-4.el9_8.1.rocky.0.1 or higher.
This issue was patched in RLSA-2026:65153.

NVD Description

Note: Versions mentioned in the description apply only to the upstream osbuild-composer-debuginfo package and not the osbuild-composer-debuginfo package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:9 relevant fixed versions and status.

Decoding a maliciously-crafted MIME header containing many invalid encoded-words can consume excessive CPU.

CVSS Base Scores

version 3.1