{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-50623", "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "state": "PUBLISHED", "assignerShortName": "apache", "dateReserved": "2026-06-05T10:20:37.692Z", "datePublished": "2026-06-12T08:52:05.767Z", "dateUpdated": "2026-06-12T09:27:59.385Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://repo.maven.apache.org/maven2", "defaultStatus": "unaffected", "packageName": "org.apache.cxf:cxf-rt-rs-security-oauth2", "product": "Apache CXF", "vendor": "Apache Software Foundation", "versions": [{"lessThan": "4.2.2", "status": "affected", "version": "4.2.0", "versionType": "semver"}, {"lessThan": "4.1.7", "status": "affected", "version": "0", "versionType": "semver"}]}], "credits": [{"lang": "en", "type": "finder", "value": "Guanping Zhang reported this vulnerability."}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "An authentication bypass vulnerability exists in the OAuth2 TokenIntrospectionService in Apache CXF.&nbsp;Due to a missing 'throw' keyword in the security context check, the introspection endpoint (/services/oauth2/introspect) can be accessed by any unauthenticated network attacker. However note that this is a safeguard only in the case that someone forgot to enable authentication on the service.&nbsp;Users are recommended to upgrade to version 4.2.2 or 4.1.7, which fixes this issue.<br><br>"}], "value": "An authentication bypass vulnerability exists in the OAuth2 TokenIntrospectionService in Apache CXF.\u00a0Due to a missing 'throw' keyword in the security context check, the introspection endpoint (/services/oauth2/introspect) can be accessed by any unauthenticated network attacker. However note that this is a safeguard only in the case that someone forgot to enable authentication on the service.\u00a0Users are recommended to upgrade to version 4.2.2 or 4.1.7, which fixes this issue."}], "metrics": [{"other": {"content": {"text": "moderate"}, "type": "Textual description of severity"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-287", "description": "CWE-287 Improper Authentication", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache", "dateUpdated": "2026-06-12T08:52:05.767Z"}, "references": [{"tags": ["vendor-advisory"], "url": "https://lists.apache.org/thread/ydzj8m5mqmjy13xgyj9mkk9hfff63qq7"}], "source": {"discovery": "EXTERNAL"}, "title": "Apache CXF: Authentication Bypass in OAuth2 TokenIntrospectionService", "x_generator": {"engine": "Vulnogram 0.2.0"}}, "adp": [{"title": "CVE Program Container", "references": [{"url": "http://www.openwall.com/lists/oss-security/2026/06/11/3"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-06-12T09:27:59.385Z"}}]}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "An authentication bypass vulnerability exists in the OAuth2 TokenIntrospectionService in Apache CXF.\u00a0Due to a missing 'throw' keyword in the security context check, the introspection endpoint (/services/oauth2/introspect) can be accessed by any unauthenticated network attacker. However note that this is a safeguard only in the case that someone forgot to enable authentication on the service.\u00a0Users are recommended to upgrade to version 4.2.2 or 4.1.7, which fixes this issue."}], "id": "CVE-2026-50623", "lastModified": "2026-06-12T10:16:22.467", "metrics": {}, "published": "2026-06-12T10:16:22.467", "references": [{"source": "security@apache.org", "url": "https://lists.apache.org/thread/ydzj8m5mqmjy13xgyj9mkk9hfff63qq7"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2026/06/11/3"}], "sourceIdentifier": "security@apache.org", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-287"}], "source": "security@apache.org", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.2.0,4.2.2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,4.1.7)"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Apache CXF", "source": "cna", "vendor": "Apache Software Foundation"}, "product": "cxf", "vendor": "apache"}], "created": "2026-06-12T10:30:24.587995+00:00", "updated": "2026-06-12T10:30:24.588055+00:00", "vendors": ["apache", "apache$PRODUCT$cxf"]}