Bug 2501210 (CVE-2026-38754)

Summary: CVE-2026-38754 busybox: Busybox: Denial of Service via heap overflow in ifsbreakup() function
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
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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A flaw was found in Busybox. This vulnerability, a heap overflow, exists within the `ifsbreakup()` function. A remote attacker could exploit this by providing specially crafted input, leading to a Denial of Service (DoS) condition. This means the affected system or application could become unavailable or unresponsive.
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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 22:04:12 UTC
A heap overflow in the ifsbreakup() function (shell/ash.c) of Busybox v1.38.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted input.