{"id":"CVE-2026-19503","summary":"Insufficient OIDC endpoint validation could invoke unintended local protocol handlers","details":"MongoDB Schema Manager and MongoDB Atlas SQL ODBC Driver do not validate the scheme of the authorization and token endpoints returned by an OIDC issuer's discovery document. A user induced to connect to an uncontrolled MongoDB deployment using MONGODB-OIDC authentication may have an uncontrolled URI dispatched to their operating system's default protocol handler, potentially exposing credentials or, under certain conditions, resulting in code execution in the user's context.","modified":"2026-10-01T03:47:47.881834276Z","published":"2026-08-12T20:17:55.369Z","database_specific":{"cwe_ids":["CWE-20"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/19xxx/CVE-2026-19503.json","unresolved_ranges":[{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"1.0.0"},{"fixed":"2.0.9"},{"introduced":"1.0.1"},{"fixed":"1.2.1"}]}],"cna_assigner":"mongodb"},"references":[{"type":"WEB","url":"https://www.mongodb.com/docs/sql-interface/changelog"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/19xxx/CVE-2026-19503.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-19503"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mongodb/mongo-odbc-driver","events":[{"introduced":"9a299ba9c161a41e3cebda9abb23b21e0e826af1"},{"fixed":"ca89bbdf01211cc3c823a6f04d2b60c89ff65fda"}],"database_specific":{"extracted_events":[{"introduced":"1.0.0"},{"fixed":"2.0.9"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:mongodb:odbc_driver:*:*:*:*:*:*:*:*"}}],"versions":["v2.0.8","v2.0.7","v2.0.6","v2.0.5","v2.0.4","v2.0.3","v2.0.2","v2.0.1","v2.0.0","v2.0.0-beta-6-libv1.0.0-beta-6","v2.0.0-beta-5-libv-1.0.0-beta-6","v1.4.6","v1.4.5","v2.0.0-beta-4-libv1.0.0-beta-5","v2.0.0-beta-3-libv1.0.0-beta-4","v2.0.0-beta-2-libv1.0.0-beta-3","v2.0.0-beta-1-libv1.0.0-beta-2","v2.0.0-beta-libv1.0.0-beta-1","v2.0.0-alpha-libv1.0.0-alpha-1","v2.0.0-alpha-libv1.0.0-alpha","v1.4.1","v1.4.0","v1.3.4","v1.3.3","v1.3.2","v1.3.1","v1.3.0","another_test","v1.2.0","v1.1.0","v1.0.2","v1.0.1","v1.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-19503.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N"}]}