### Summary OpenBao users with access to the `sys/leases/revoke/:lease_id` endpoint in any namespace can revoke leases in any other namespace as long as the lease identifier is known to them, bypassing ACLs that should apply for cross-namespace revocations. ### Impact OpenBao's namespaces provide multi-tenant separation. A tenant who intentionally leaks lease identifiers can have their lease and underlying credential revoked by a user in another tenant. ### Patch This will be fixed in OpenBao v2.5.5. ### References This vulnerability is similar to but distinct from: - CVE-2026-45808 / GHSA-v8v8-cm84-m686 - CVE-2026-40264 / GHSA-p49j-v9wc-wg57
Update github.com/openbao/openbao to 0.0.0-20260617103932-b20b999dd404 if you use the affected versions. Test the change in a non-production environment first.
Local check
hol-guard supply-chain scanOpenBao: Cross-namespace lease revocation/renewal via canonical sys/leases/{revoke,renew} — incomplete fix of CVE-2026-45808 affects github.com/openbao/openbao (go), github.com/openbao/openbao (go). Severity is low. ### Summary OpenBao users with access to the `sys/leases/revoke/:lease_id` endpoint in any namespace can revoke leases in any other namespace as long as the lease identifier is known to them, bypassing ACLs that should apply for cross-namespace revocations. ### Impact OpenBao's namespaces provide multi-tenant separation. A tenant who intentionally leaks lease identifiers can have their lease and underlying credential revoked by a user in another tenant. ### Patch This will be fixed in OpenBao v2.5.5. ### References This vulnerability is similar to but distinct from: - CVE-2026-45808 / GHSA-v8v8-cm84-m686 - CVE-2026-40264 / GHSA-p49j-v9wc-wg57
AI coding agents often install or upgrade packages automatically in go. A low vulnerability in a dependency can be pulled into a project through a normal install or update without a human reviewing the change, expanding the blast radius from a single package to every agent workspace that depends on it.
| Package | Affected range | Fixed version |
|---|
### Summary OpenBao users with access to the `sys/leases/revoke/:lease_id` endpoint in any namespace can revoke leases in any other namespace as long as the lease identifier is known to them, bypassing ACLs that should apply for cross-namespace revocations. ### Impact OpenBao's namespaces provide multi-tenant separation. A tenant who intentionally leaks lease identifiers can have their lease and underlying credential revoked by a user in another tenant. ### Patch This will be fixed in OpenBao v2.5.5. ### References This vulnerability is similar to but distinct from: - CVE-2026-45808 / GHSA-v8v8-cm84-m686 - CVE-2026-40264 / GHSA-p49j-v9wc-wg57
Update github.com/openbao/openbao to 0.0.0-20260617103932-b20b999dd404 if you use the affected versions. Test the change in a non-production environment first.
Local check
hol-guard supply-chain scanOpenBao: Cross-namespace lease revocation/renewal via canonical sys/leases/{revoke,renew} — incomplete fix of CVE-2026-45808 affects github.com/openbao/openbao (go), github.com/openbao/openbao (go). Severity is low. ### Summary OpenBao users with access to the `sys/leases/revoke/:lease_id` endpoint in any namespace can revoke leases in any other namespace as long as the lease identifier is known to them, bypassing ACLs that should apply for cross-namespace revocations. ### Impact OpenBao's namespaces provide multi-tenant separation. A tenant who intentionally leaks lease identifiers can have their lease and underlying credential revoked by a user in another tenant. ### Patch This will be fixed in OpenBao v2.5.5. ### References This vulnerability is similar to but distinct from: - CVE-2026-45808 / GHSA-v8v8-cm84-m686 - CVE-2026-40264 / GHSA-p49j-v9wc-wg57
AI coding agents often install or upgrade packages automatically in go. A low vulnerability in a dependency can be pulled into a project through a normal install or update without a human reviewing the change, expanding the blast radius from a single package to every agent workspace that depends on it.
| Package | Affected range | Fixed version |
|---|
| github.com/openbao/openbaogo | >=0.1.0,<=2.5.4 | Not reported |
|---|
| github.com/openbao/openbaogo | <0.0.0-20260617103932-b20b999dd404 | 0.0.0-20260617103932-b20b999dd404 |
|---|
Fixed versions are reported by the source feed; confirm compatibility before updating.
Reported by GitHub Security Advisories (ghsa).
HOL Guard can help your team review package activity against supported protection paths.
Explore HOL Guard| github.com/openbao/openbaogo | >=0.1.0,<=2.5.4 | Not reported |
|---|
| github.com/openbao/openbaogo | <0.0.0-20260617103932-b20b999dd404 | 0.0.0-20260617103932-b20b999dd404 |
|---|
Fixed versions are reported by the source feed; confirm compatibility before updating.
Reported by GitHub Security Advisories (ghsa).
HOL Guard can help your team review package activity against supported protection paths.
Explore HOL Guard