Bug 2358754 (CVE-2025-32387)

Summary: CVE-2025-32387 helm.sh/helm/v3: Helm Allows A Specially Crafted JSON Schema To Cause A Stack Overflow
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: abarbaro, adudiak, alcohan, brainfor, cdaley, dfreiber, drow, gparvin, jburrell, jchui, jforrest, jhe, jkoehler, jwendell, kshier, ktsao, ldai, lphiri, lsharar, lucarval, nboldt, njean, omaciel, owatkins, pahickey, psrna, rcernich, rhaigner, stcannon, vkumar, yguenane
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Helm v3. In affected versions of Helm, a specially crafted JSON Schema within a chart can lead to a stack overflow. A JSON Schema file within a chart can be crafted with a deeply nested chain of references, leading to parser recursion that can exceed the stack size limit and trigger a stack overflow.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2025-04-09 23:01:13 UTC
Helm is a package manager for Charts for Kubernetes. A JSON Schema file within a chart can be crafted with a deeply nested chain of references, leading to parser recursion that can exceed the stack size limit and trigger a stack overflow. This issue has been resolved in Helm v3.17.3.