{"items":[{"id":"NVI-00018354","kind":"vulnerability","title":"OpenBao: Cross-namespace lease revocation/renewal via canonical sys/leases/{revoke,renew} — incomplete fix of CVE-2026-45808","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-c36x-h252-g9x2","CVE-2026-55774"],"plain_summary":"GitHub lists this reviewed advisory for github.com/openbao/openbao, github.com/openbao/openbao. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-15a2c6df4fa2feb35fcb13d30fd8defc"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-15a2c6df4fa2feb35fcb13d30fd8defc","url":"https://github.com/advisories/GHSA-c36x-h252-g9x2","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-c36x-h252-g9x2","publisher":"GitHub Advisory Database","observed_at":"2026-11-06T07:18:46.322Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-15a2c6df4fa2feb35fcb13d30fd8defc"],"technology":"github.com/openbao/openbao","known_exclusions":[],"conditions_summary":"### Summary\n\nOpenBao 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.\n\n### Impact\n\nOpenBao'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.\n\n### Patch\n\nThis will be fixed in OpenBao v2.5.5.\n\n### References\n\nThis vulnerability is similar to but distinct from:\n\n- CVE-2026-45808 / GHSA-v8v8-cm84-m686\n- CVE-2026-40264 / GHSA-p49j-v9wc-wg57","public_affected_ranges":[">= 0.1.0, <= 2.5.4"]},{"certainty":"source_listed","source_ids":["sr-15a2c6df4fa2feb35fcb13d30fd8defc"],"technology":"github.com/openbao/openbao","known_exclusions":[],"conditions_summary":"### Summary\n\nOpenBao 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.\n\n### Impact\n\nOpenBao'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.\n\n### Patch\n\nThis will be fixed in OpenBao v2.5.5.\n\n### References\n\nThis vulnerability is similar to but distinct from:\n\n- CVE-2026-45808 / GHSA-v8v8-cm84-m686\n- CVE-2026-40264 / GHSA-p49j-v9wc-wg57","public_affected_ranges":["< 0.0.0-20260617103932-b20b999dd404"]}],"null_published_at":"2026-11-07T07:07:39.822Z","source_updated_at":"2026-06-19T21:42:05.000Z","source_disclosed_at":"2026-06-19T21:42:04.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-06T07:18:46.322Z"}],"next_cursor":null,"snapshot_revision":"42594"}