CVE-2026-38753 Affecting busybox package, versions <1.38.0-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.14% (4th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-BUSYBOX-18967597
  • published19 Aug 2026
  • disclosed15 Jul 2026

Introduced: 15 Jul 2026

CVE-2026-38753  (opens in a new tab)

How to fix?

Upgrade Chainguard busybox to version 1.38.0-r0 or higher.

NVD Description

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

A use-after-free in the awk_sub() function (editors/awk.c) of Busybox v1.38.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted AWK script.

CVSS Base Scores

version 3.1