{"id":"CVE-2026-115356","title":"OpenBao before 2.6.4 and 2.7.0 before 2.7.1 Kubernetes Auth Method Token Renewal After Revocation","summary":"OpenBao before 2.6.4 and 2.7.x before 2.7.1 does not verify, when renewing a token issued by the Kubernetes Auth method, that the service account token originally used to authenticate is still valid. An authenticated attacker can keep re…","severity":"medium","cvss":5.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","cvssSource":"cna","cwe":["CWE-613"],"vendor":"openbao","product":"openbao","affected":["openbao < 2.6.4","openbao >= 2.7.0 < 2.7.1"],"published":"2026-10-22","updated":"2026-10-22","sourceUpdated":"2026-10-22T19:13:32.611Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-115356","references":[{"url":"https://github.com/openbao/openbao/security/advisories/GHSA-gf3j-hm38-jhh5","label":"GitHub Security Advisory (GHSA-gf3j-hm38-jhh5)"},{"url":"https://www.vulncheck.com/advisories/openbao-before-2.6.4-and-2.7.0-before-2.7.1-kubernetes-auth-method-token-renewal-after-revocation","label":"VulnCheck Advisory: OpenBao before 2.6.4 and 2.7.0 before 2.7.1 Kubernetes Auth Method Token Renewal After Revocation"}],"tags":["cve.org"],"ingestedAt":"2026-10-22T22:00:50.397Z","slug":"CVE-2026-115356","body":"## Overview\n\nOpenBao before 2.6.4 and 2.7.x before 2.7.1 does not verify, when renewing a token issued by the Kubernetes Auth method, that the service account token originally used to authenticate is still valid. An authenticated attacker can keep renewing such tokens to persist access after the Kubernetes service account has been deleted.\n\n## Affected\n\n- `openbao < 2.6.4`\n- `openbao >= 2.7.0 < 2.7.1`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":29.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}