Bug 2524138 (CVE-2026-32637)

Summary: CVE-2026-32637 github.com/vmware-tanzu/velero: Velero: File path traversal allows overwriting sensitive files via malicious backup tarball.
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: akhatavk, aos-team-art-private, asdas, crizzo, dfreiber, dpaolell, drow, dymurray, gparvin, ibolton, jburrell, jdelft, jmatthew, jmontleo, jupierce, lgarciaa, mbiarnes, pgaikwad, ppalepu, ppostler, prdhamdh, rhaigner, rjohnson, sghai, sidsharm, slucidi, sseago, suppawar, vkumar, vlaad, whayutin
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Velero, an open-source tool for managing Kubernetes backups. An attacker who compromises the backup object-storage backend can upload a specially crafted malicious backup file. During the restore process, this malicious file can exploit a path traversal vulnerability to overwrite sensitive files within the Velero pod's filesystem. This could lead to unauthorized modification of critical system files.
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Description OSIDB Bzimport 2026-08-25 21:35:53 UTC
Velero is an open source tool for backing up, restoring, and migrating Kubernetes cluster resources and persistent volumes. Prior to 1.18.1, an attacker who compromises the backup object-storage backend can upload a malicious backup tarball containing parent-directory paths that escape the extraction directory during restore and overwrite sensitive files in the Velero pod filesystem. This issue is fixed in version 1.18.1.