{"schema":"threatline.record/2","record":{"id":"CVE-2026-96746","aliases":["GHSA-frjf-h5jg-4v46"],"summary":"Heap buffer overflow via mid-scan command list growth in client topology monitoring","details":"An out-of-bounds write in the connection-monitoring logic of the MongoDB C Driver may allow an unauthenticated party who controls name resolution and the responses of the hosts named in a client's connection string to write beyond the end of a heap buffer. This may cause the application using the driver to terminate unexpectedly.","categories":["Databases"],"product":"C Driver","vendor":"MongoDB","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-96746","source_modified_at":"2026-09-24T18:18:08.886Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"C Driver","vendor":"MongoDB","versions":[{"status":"affected","version":"0","lessThan":"1.30.12","versionType":"semver"},{"status":"affected","version":"2.0.0","lessThan":"2.5.5","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-96746","source_modified_at":"2026-09-24T18:18:08.886Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"C Driver","ecosystem":null},"version":"1.30.12","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-96746","source_modified_at":"2026-09-24T18:18:08.886Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"C Driver","ecosystem":null},"version":"2.5.5","basis":"first unaffected version stated in the CVE record"}],"cvss":8.3,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00366,"percentile":0.29251,"score_date":"2026-10-23"},"published_at":"2026-09-24T15:51:15.196Z","modified_at":"2026-09-24T18:18:08.886Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-96746","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-09-24T18:18:08.886Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-96746","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/mongodb/mongo-c-driver/security/advisories/GHSA-frjf-h5jg-4v46"},{"source":"CVE List","url":"https://github.com/mongodb/mongo-c-driver/releases/tag/1.30.12"},{"source":"CVE List","url":"https://github.com/mongodb/mongo-c-driver/releases/tag/2.5.5"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-09-24T17:10:23.359575Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"vendor and product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-09-24T18:18:08.886Z","content_hash":"c083bace7f468bf63036e512c5e9e2a32ca7a6662b0b8021902d342fbd8c79ae"}}