{"id":"CVE-2026-32637","state":"PUBLISHED","title":"Velero vulnerable to file path traversal when extracting from backup's tarball","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.","publishedAt":"2026-08-25T21:15:31.881Z","updatedAt":"2026-08-28T22:38:21.971Z","severity":{"score":5.9,"label":"Medium","version":"4.0","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","source":"GitHub_M"},"assigner":"GitHub_M","products":["velero-io velero"],"affected":[{"vendor":"velero-io","product":"velero","versions":[{"version":"< 1.18.1","status":"affected"}]}],"references":["https://github.com/velero-io/velero/security/advisories/GHSA-j2g6-362q-6qc6","https://github.com/securego/gosec/issues/324","https://github.com/velero-io/velero/commit/3f8e3588496391979915ace065f732a9013c1cf0","https://github.com/velero-io/velero/commit/c7fa4bfe3571667e9731f3f504da3c6be709a24c"],"weaknesses":["CWE-22"],"ingestedAt":"2026-10-29T20:11:40.391Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/32xxx/CVE-2026-32637.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-32637","state":"PUBLISHED","datePublished":"2026-08-25T21:15:31.881Z","dateUpdated":"2026-08-28T22:38:21.971Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-03-12T15:29:36.559Z"},"containers":{"cna":{"title":"Velero vulnerable to file path traversal when extracting from backup's tarball","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"velero-io","product":"velero","versions":[{"version":"< 1.18.1","status":"affected"}]}],"references":[{"url":"https://github.com/velero-io/velero/security/advisories/GHSA-j2g6-362q-6qc6","name":"https://github.com/velero-io/velero/security/advisories/GHSA-j2g6-362q-6qc6","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/securego/gosec/issues/324","name":"https://github.com/securego/gosec/issues/324","tags":["x_refsource_MISC"]},{"url":"https://github.com/velero-io/velero/commit/3f8e3588496391979915ace065f732a9013c1cf0","name":"https://github.com/velero-io/velero/commit/3f8e3588496391979915ace065f732a9013c1cf0","tags":["x_refsource_MISC"]},{"url":"https://github.com/velero-io/velero/commit/c7fa4bfe3571667e9731f3f504da3c6be709a24c","name":"https://github.com/velero-io/velero/commit/c7fa4bfe3571667e9731f3f504da3c6be709a24c","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"ACTIVE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":5.9,"baseSeverity":"MEDIUM","vectorString":"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","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-22","lang":"en","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-08-25T21:15:31.881Z"},"source":{"advisory":"GHSA-j2g6-362q-6qc6","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-28T22:38:12.852792Z","id":"CVE-2026-32637","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-28T22:38:21.971Z"}}]}}}