OpenBao's Recovery Mode Vulnerable To Token Leakage via Timing Attack
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.
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-63132US | — | — | ||
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… | ||||
references
External citations — patches, advisories, analysis.
- https://github.com/hashicorp/vault/blob/main/CHANGELOG.md#203WEB
- https://github.com/openbao/openbao/commit/0f2d90c331f25d1c6cd108638da03f4c7bd949a8WEB
- https://github.com/openbao/openbao/commit/763625a2072103ea9e9122f2a8408e0b988d287aWEB
- https://github.com/openbao/openbao/pull/3388WEB
- https://github.com/openbao/openbao/pull/3472WEB
- https://github.com/openbao/openbao/releases/tag/v2.6.0WEB
- https://github.com/openbao/openbao/security/advisories/GHSA-34fc-gh42-pj53WEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-63132WEB
Advisories like this name the exposed products attackers go after on your perimeter. See what is exposed on your perimeter with a free passive scan.
Free scan