{"action":"Upgrade org.apache.cxf:cxf-rt-rs-security-oauth2 to 4.1.7 (4.1.x) or 4.2.2 (4.2.x) or later.","affected":[{"fixed":"4.2.2","introduced":"4.2.0"},{"fixed":"4.1.7","introduced":"0"}],"component":"org.apache.cxf:cxf-rt-rs-security-oauth2","cve_ids":["CVE-2026-50631"],"ecosystem":"Maven","epss":0.00293,"exploited":false,"fixed_versions":["4.2.2","4.1.7"],"ghsa_id":"GHSA-83r6-96m8-r52p","id":"tcs_01M5N8KP7KJRNE7RAZ28P31JQD","modified_at":"2026-08-20T18:48:08.279103Z","published_at":"2026-06-12T12:31:33Z","references":["https://osv.dev/vulnerability/GHSA-83r6-96m8-r52p","https://nvd.nist.gov/vuln/detail/CVE-2026-50631","https://github.com/apache/cxf","https://lists.apache.org/thread/s83t3x4r626o9h8rt0ryr1w7w53l1vv8","http://www.openwall.com/lists/oss-security/2026/06/11/8"],"severity":{"label":"high","score":7.4},"sources":[{"source":"osv","source_id":"GHSA-83r6-96m8-r52p","url":"https://osv.dev/vulnerability/GHSA-83r6-96m8-r52p"}],"summary":"Apache CXF OAuth2 TOCTOU Race Condition in Refresh Token Processing"}