{"schema":"threatline.record/2","record":{"id":"CVE-2026-106429","aliases":[],"summary":"Application denial of service via malformed KMS endpoint in MongoDB libmongocrypt","details":"An integer underflow in the KMS endpoint-parsing logic of MongoDB libmongocrypt can cause an allocation failure that terminates the application process. This can occur when an authenticated user modifies a key document in the key vault collection, or when an application accepts a KMS endpoint containing a colon after its path or query during key creation. The issue does not access memory outside its allocated bounds.","categories":["Databases"],"product":"libmongocrypt","vendor":"MongoDB","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-106429","source_modified_at":"2026-10-08T19:30:01.396Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"libmongocrypt","vendor":"MongoDB","versions":[{"status":"affected","version":"1.1.0","lessThan":"1.20.5","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-106429","source_modified_at":"2026-10-08T19:30:01.396Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"name":"libmongocrypt","ecosystem":null},"version":"1.20.5","basis":"first unaffected version stated in the CVE record"}],"cvss":7.1,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00289,"percentile":0.20393,"score_date":"2026-10-23"},"published_at":"2026-10-08T18:54:10.237Z","modified_at":"2026-10-08T19:30:01.396Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-106429","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-08T19:30:01.396Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-106429","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://jira.mongodb.org/browse/MONGOCRYPT-986"}],"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":"2026-10-08T19:29:53.569305Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"vendor and product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-08T19:30:01.396Z","content_hash":"8706e9ffa383baa17c1d02c49b96adb56adf1fc5854d31a53f91feeb21b56d0e"}}