CVE-2026-32637

Velero vulnerable to file path traversal when extracting from backup's tarball

Published Aug 25, 2026 CVSS 4.0 · 5.9 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-j2g6-362q-6qc6 Velero vulnerable to file path traversal when extracting from backup's tarball
History
Type Values Removed Values Added
References
Metrics threat_severity

None

cvssV3_1

{'score': 6.8, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H'}

threat_severity

Moderate

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Velero-io
Velero-io velero
Vendors & Products Velero-io
Velero-io velero
Type Values Removed Values Added
Description 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.
Title Velero vulnerable to file path traversal when extracting from backup's tarball
Weaknesses CWE-22
References
Metrics cvssV4_0

{'score': 5.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Aug 28, 2026, 10:38 PM
Reserved
Mar 12, 2026, 3:29 PM
Status
Deferred
Published
Aug 25, 2026, 10:17 PM
Modified
Sep 9, 2026, 9:09 PM
Severity
Moderate
Public date
Aug 25, 2026, 9:15 PM