{"document":{"category":"csaf_vex","csaf_version":"2.0","title":"CVE-2026-50629: Apache CXF: OAuth2: Log Injection via Unsanitized Client Identifier","publisher":{"category":"vendor","name":"HarborGuard Database","namespace":"https://database.harborguard.co"},"tracking":{"id":"CVE-2026-50629","status":"final","version":"1","initial_release_date":"2026-06-12T08:57:22.534Z","current_release_date":"2026-06-12T14:02:22.136Z","revision_history":[{"date":"2026-06-12T08:57:22.534Z","number":"1","summary":"Initial machine-readable export from HarborGuard."}]},"distribution":{"tlp":{"label":"WHITE"},"text":"Public CVE data; freely redistributable."},"notes":[{"category":"description","text":"The 'clientId' parameter from incoming HTTP requests is directly concatenated into OAuth2 server log warning messages without sanitizing control characters. This allows an attacker to inject arbitrary content, including fake log entries, into the server's log files. Users are recommended to upgrade to versions 4.2.2 or 4.1.7, which fixes this issue.","title":"CVE description"}],"references":[{"category":"self","summary":"CVE-2026-50629 on HarborGuard Database","url":"https://database.harborguard.co/cve/CVE-2026-50629"},{"category":"external","summary":"CVE Record","url":"https://www.cve.org/CVERecord?id=CVE-2026-50629"},{"category":"external","summary":"lists.apache.org","url":"https://lists.apache.org/thread/xw95po30p8th58ms1no6b0f2375cql00"}]},"product_tree":{"branches":[{"category":"vendor","name":"Apache Software Foundation","branches":[{"category":"product_name","name":"Apache CXF","branches":[{"category":"product_version_range","name":">=4.2.0 <4.2.2","product":{"name":"Apache Software Foundation Apache CXF >=4.2.0 <4.2.2","product_id":"CSAFPID-1","product_identification_helper":{"cpe":"cpe:2.3:a:apache_software_foundation:apache_cxf:*:*:*:*:*:*:*:*"}}},{"category":"product_version_range","name":"<4.1.7","product":{"name":"Apache Software Foundation Apache CXF <4.1.7","product_id":"CSAFPID-2","product_identification_helper":{"cpe":"cpe:2.3:a:apache_software_foundation:apache_cxf:*:*:*:*:*:*:*:*"}}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-50629","title":"Apache CXF: OAuth2: Log Injection via Unsanitized Client Identifier","notes":[{"category":"description","text":"The 'clientId' parameter from incoming HTTP requests is directly concatenated into OAuth2 server log warning messages without sanitizing control characters. This allows an attacker to inject arbitrary content, including fake log entries, into the server's log files. Users are recommended to upgrade to versions 4.2.2 or 4.1.7, which fixes this issue.","title":"CVE description"}],"product_status":{"known_affected":["CSAFPID-1","CSAFPID-2"]},"scores":[{"cvss_v3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","baseScore":8.2,"baseSeverity":"HIGH"},"products":["CSAFPID-1","CSAFPID-2"]}],"remediations":[{"category":"vendor_fix","details":"Update to a fixed version: 4.1.7, 4.2.2.","product_ids":["CSAFPID-1","CSAFPID-2"]}]}]}