{"schema":"threatline.record/2","record":{"id":"CVE-2026-5267","aliases":[],"summary":"Unauthenticated Event Stream Exposure of Session Tokens in Navigator NCS","details":"Ciena Navigator Network\nControl Suite (NCS) contains an information exposure vulnerability in an\nevent-streaming API that does not properly enforce authentication. An\nunauthenticated attacker with network access to the affected service could\naccess the event stream and potentially obtain sensitive information.","categories":["Unclassified"],"product":"Navigator NCS","vendor":"Ciena","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-5267","source_modified_at":"2026-09-25T20:40:31.039Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"Navigator NCS","vendor":"Ciena","versions":[{"status":"affected","version":"7.2 and any older release"},{"status":"affected","version":"7.2-P01 through 7.2-P07"},{"status":"affected","version":"8.0"},{"status":"affected","version":"8.0-P01 through 8.0-P06A"},{"status":"affected","version":"8.1"},{"status":"affected","version":"8.1-P01 through 8.1-P06"},{"status":"affected","version":"8.2"},{"status":"affected","version":"8.2-P01 through 8.2-P06"},{"status":"affected","version":"9.0"},{"status":"affected","version":"9.0-P01 through 9.0-P05A"},{"status":"affected","version":"9.1"},{"status":"affected","version":"9.1-P01 through 9.1-P05"},{"status":"affected","version":"9.2"},{"status":"affected","version":"9.2-P01 through 9.2-P02"},{"status":"affected","version":"10.0"},{"status":"affected","version":"10.0-P01 through 10.0-P01B"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":7.5,"severity":"High","kev":{"listed":false},"epss":{"probability":0.0036,"percentile":0.28668,"score_date":"2026-10-23"},"published_at":"2026-09-25T19:10:46.330Z","modified_at":"2026-09-25T20:40:31.039Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-5267","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-09-25T20:40:31.039Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-5267","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://www.ciena.com/product-security"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CISA ADP","ssvc":{"exploitation":"none","automatable":"yes","technical_impact":"partial","assessed_at":"2026-09-25T20:40:10.302755Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-09-25T20:40:31.039Z","content_hash":"346e25887b22bcab332ec074267f8a212fd99b7a4a1e5e64d741b7f89d7381b6"}}