CVE-2026-63132— OpenBao's Recovery Mode Vulnerable To Token Leakage via Timing Attack
Quick assessment
Affected
openbao openbao
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
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 m
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I. Basic Information for CVE-2026-63132
Vulnerability Information
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Vulnerability Title
OpenBao's Recovery Mode Vulnerable To Token Leakage via Timing Attack
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
通过时间差异性导致的信息暴露
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-63132
| # | POC Description | Source Link | Shenlong Link |
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Patches & Fixes for CVE-2026-63132 (4)
Vendor Pages for CVE-2026-63132 (1)
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🔗 Release v2.6.0 · openbao/openbao · GitHub x_refsource_MISC
Other References for CVE-2026-63132 (1)
Other References for CVE-2026-63132 (1)
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https://github.com/hashicorp/vault/blob/main/CHANGELOG.md#203 x_refsource_MISC
Same Patch Batch · openbao · 2026-09-23 · 3 CVEs total
| CVE-2026-63131 | 6.0 MEDIUM | OpenBao LIST ACL bypass: a trailing-slash LIST request skips a more-specific deny rule (un |
| CVE-2026-77285 | 2.4 LOW | OpenBao Agent Writes Secrets to Stdout |
IV. Related Vulnerabilities
Same product: openbao
-
CVE-2026-63131
OpenBao LIST ACL bypass: a trailing-slash LIST request skips -
CVE-2026-77285
OpenBao Agent Writes Secrets to Stdout -
CVE-2026-71543
OpenBao's Templated Policies Allow Privilege Escalation via -
CVE-2026-55770
OpenBao: LDAPi ldaputil (wrong escape func) -
CVE-2026-55776
OpenBao: Transit secrets engine crashes on key creation with
Same vendor: openbao
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CVE-2026-63131
OpenBao LIST ACL bypass: a trailing-slash LIST request skips -
CVE-2026-77285
OpenBao Agent Writes Secrets to Stdout -
CVE-2026-71543
OpenBao's Templated Policies Allow Privilege Escalation via -
CVE-2026-55770
OpenBao: LDAPi ldaputil (wrong escape func) -
CVE-2026-55776
OpenBao: Transit secrets engine crashes on key creation with
Same weakness: CWE-208
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CVE-2026-85725
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Traefik: BasicAuth singleflight coalescing reintroduces an u -
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dgtlmoon changedetection.io Hash Comparison flask_app.py che -
CVE-2026-58272
Sync-in Server has Username/Login Enumeration via Timing Sid -
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V. Comments for CVE-2026-63132
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