CVE-2026-55774
NONEErwähnungen (letzte 60 Tage)
EPSS-Score
0.4%
Exploit-Wahrscheinlichkeit (30 Tage)
Beschreibung
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.
GitHub Advisories
OpenBao: Cross-namespace lease revocation/renewal via canonical sys/leases/{revoke,renew} — incomplete fix of CVE-2026-45808
Referenzen
- https://github.com/openbao/openbao/commit/9ba1413d793223cca67db12434093a2f25fdc5...
- https://github.com/openbao/openbao/commit/b20b999dd4044d7b419a5472d8fe08407828be...
- https://github.com/openbao/openbao/pull/3307
- https://github.com/openbao/openbao/pull/3310
- https://github.com/openbao/openbao/releases/tag/v2.5.5
- https://github.com/openbao/openbao/releases/tag/v2.6.0
- https://github.com/openbao/openbao/security/advisories/GHSA-c36x-h252-g9x2