CVE-2026-63132
OpenBao's Recovery Mode Vulnerable To Token Leakage via Timing Attack
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
OpenBao is an open source identity-based secrets management system. Prior to 2.6.0, OpenBao's handleLogicalRecovery path in http/logical.go compared the highly privileged recovery token with ordinary string equality. A remote unauthenticated attacker able to make repeated recovery mode requests and measure response timing could infer the recovery token. The recovered token could then authorize recovery mode operations that read or modify OpenBao data. This issue is fixed in version 2.6.0.
| CWE | CWE-208 |
| Vendor | openbao |
| Product | openbao |
| Published | Sep 23, 2026 |
| Last Updated | Sep 23, 2026 |
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Affected Versions
openbao / openbao
< 2.6.0
References
github.com: https://github.com/openbao/openbao/security/advisories/GHSA-34fc-gh42-pj53 github.com: https://github.com/openbao/openbao/pull/3388 github.com: https://github.com/openbao/openbao/pull/3472 github.com: https://github.com/openbao/openbao/commit/0f2d90c331f25d1c6cd108638da03f4c7bd949a8 github.com: https://github.com/openbao/openbao/commit/763625a2072103ea9e9122f2a8408e0b988d287a github.com: https://github.com/hashicorp/vault/blob/main/CHANGELOG.md#203 github.com: https://github.com/openbao/openbao/releases/tag/v2.6.0