OpenBao is an open source identity-based secrets management system. Prior to 2.5.5, an OpenBao user with access to sys/leases/revoke/:lease_id in one namespace could revoke a lease in another namespace when the foreign lease_id was known, bypassing namespace ACL isolation. The affected lease lookup routing in vault/expiration.go allowed FetchLeaseInfo and loadEntry to resolve cached or stored lease data outside the request namespace, allowing a tenant that intentionally disclosed a lease identifier to have the lease and its underlying credential revoked by another tenant. This issue is fixed in version 2.5.5.
Metrics
Affected Vendors & Products
References
History
Tue, 15 Sep 2026 19:00:00 +0000
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Openbao
Openbao openbao |
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Openbao
Openbao openbao |
Tue, 15 Sep 2026 18:30:00 +0000
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ssvc
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Tue, 15 Sep 2026 16:00:00 +0000
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| Description | OpenBao is an open source identity-based secrets management system. Prior to 2.5.5, an OpenBao user with access to sys/leases/revoke/:lease_id in one namespace could revoke a lease in another namespace when the foreign lease_id was known, bypassing namespace ACL isolation. The affected lease lookup routing in vault/expiration.go allowed FetchLeaseInfo and loadEntry to resolve cached or stored lease data outside the request namespace, allowing a tenant that intentionally disclosed a lease identifier to have the lease and its underlying credential revoked by another tenant. This issue is fixed in version 2.5.5. | |
| Title | OpenBao: Cross-namespace lease revocation/renewal via canonical sys/leases/{revoke,renew} — incomplete fix of CVE-2026-45808 | |
| Weaknesses | CWE-863 | |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-09-15T15:42:03.157Z
Updated: 2026-09-15T17:26:45.372Z
Reserved: 2026-06-17T14:40:28.379Z
Link: CVE-2026-55774
Updated: 2026-09-15T17:26:41.938Z
Status : Awaiting Analysis
Published: 2026-09-15T16:17:15.923
Modified: 2026-09-25T14:23:59.847
Link: CVE-2026-55774
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