Bug 2501183 (CVE-2026-38753)

Summary: CVE-2026-38753 busybox: Busybox: Denial of Service via crafted AWK script in awk_sub() function
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: aprice, bsquizza, cmitchel, dfreiber, drow, elicohen, gbenhaim, jburrell, jsamir, kaycoth, kshier, niyer, oezr, rhel-process-autobot, stcannon, teagle, twaugh, vkumar, watson-tool-maintainers, yguenane
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Doc Text:
A flaw was found in Busybox. A use-after-free vulnerability in the awk_sub() function allows a remote attacker to cause a Denial of Service (DoS) by supplying a specially crafted AWK script. This can lead to the unavailability of the Busybox service.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Description OSIDB Bzimport 2026-07-15 21:03:27 UTC
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.