CVE-2026-63132OpenBao's Recovery Mode Vulnerable To Token Leakage via Timing Attack
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 9.2 CRITICAL (v4.0, CNA)CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- Weakness (CWE)
- CWE-208
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Deferred
- Record last updated
- Sep 23, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
openbao openbao openbao:openbao (from the name) | before 2.6.0 | CNA record |
References
- https://github.com/openbao/openbao/security/advisories/GHSA-34fc-gh42-pj53x-refsource-confirm
- https://github.com/openbao/openbao/pull/3388x-refsource-misc
- https://github.com/openbao/openbao/pull/3472x-refsource-misc
- https://github.com/openbao/openbao/commit/0f2d90c331f25d1c6cd108638da03f4c7bd949a8x-refsource-misc
- https://github.com/openbao/openbao/commit/763625a2072103ea9e9122f2a8408e0b988d287ax-refsource-misc
- https://github.com/hashicorp/vault/blob/main/CHANGELOG.md#203x-refsource-misc
- https://github.com/openbao/openbao/releases/tag/v2.6.0x-refsource-misc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.