{"id":"CVE-2025-55000","aliases":["BIT-openbao-2025-55000","GHSA-f7c3-mhj2-9pvg","GO-2025-3853"],"url":"https://o3.security/vulnerability/CVE-2025-55000","summary":"OpenBao TOTP Secrets Engine Enables Code Reuse","details":"### Impact\n\nOpenBao's TOTP secrets engine could accept valid codes multiple times rather than strictly-once. This was caused by unexpected normalization in the underlying TOTP library.\n\n### Patches\n\nOpenBao v2.3.2 will patch this issue.\n\nIn patching, codes which were not normalized (strictly N numeric digits) will now be rejected. This is a potentially breaking change.\n\n### Workarounds\n\nTOTP code verification is a privileged action; only trusted systems should be verifying codes. Ensure that all codes are first normalized before submitting to the OpenBao endpoint.\n\n### References\n\nThis issue was disclosed to HashiCorp and is the OpenBao equivalent of the following tickets:\n\n- https://discuss.hashicorp.com/t/hcsec-2025-17-vault-totp-secrets-engine-code-reuse/76036\n- https://nvd.nist.gov/vuln/detail/CVE-2025-6014","published":"2025-08-09T02:01:16.409Z","modified":"2026-08-12T03:51:22.805337054Z","cvss":{"score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"},"epss":{"score":0.00209,"percentile":0.10952,"asOf":"2026-08-24"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/openbao/openbao","fixedVersion":"2.3.2"},{"ecosystem":"Go","name":"github.com/openbao/openbao","fixedVersion":"0.0.0-20250806193153-183891f8d535"}],"fix":{"url":"https://github.com/openbao/openbao/commit/183891f8d535d5b6eb3d79fda8200cade6de99e1","label":"openbao/openbao@183891f"},"references":[{"type":"WEB","url":"https://discuss.hashicorp.com/t/hcsec-2025-17-vault-totp-secrets-engine-code-reuse/76036"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/55xxx/CVE-2025-55000.json"},{"type":"ADVISORY","url":"https://github.com/openbao/openbao/security/advisories/GHSA-f7c3-mhj2-9pvg"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-55000"},{"type":"FIX","url":"https://github.com/openbao/openbao/commit/183891f8d535d5b6eb3d79fda8200cade6de99e1"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-6014"},{"type":"PACKAGE","url":"https://github.com/openbao/openbao"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:22.805337054Z"}}