{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-12893", "assignerOrgId": "a39b4221-9bd0-4244-95fc-f3e2e07f1deb", "state": "PUBLISHED", "assignerShortName": "mongodb", "dateReserved": "2025-11-07T18:24:11.002Z", "datePublished": "2025-11-25T05:07:17.878Z", "dateUpdated": "2025-11-25T16:43:49.415Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "platforms": ["MacOS", "Windows"], "product": "MongoDB Server", "vendor": "MongoDB Inc.", "versions": [{"lessThan": "7.0.26", "status": "affected", "version": "7.0", "versionType": "custom"}, {"lessThan": "8.0.16", "status": "affected", "version": "8.0", "versionType": "custom"}, {"lessThan": "8.2.2", "status": "affected", "version": "8.2", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<b><p></p></b><p><span style=\"background-color: transparent;\">Clients may successfully perform a TLS handshake with a MongoDB server despite presenting a client certificate not aligning with the documented Extended Key Usage (EKU) requirements. 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This issue is specific to MongoDB servers running on Windows or Apple as the expected validation behavior functions correctly on Linux systems.</span></p><p><span style=\"background-color: transparent;\">Additionally, MongoDB servers may successfully establish egress TLS connections with servers that present server certificates not aligning with the documented Extended Key Usage (EKU) requirements. A certificate that specifies extendedKeyUsage but is missing extendedKeyUsage = serverAuth may still be successfully authenticated via the TLS handshake as a server. 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