{"id":"CVE-2026-111753","summary":"Angular: XSRF Token Leakage via URL Parsing Discrepancy in Angular HTTP Client (Incomplete fix for CVE-2025-66035)","details":"Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 20.3.34 and 21.0.3, the @angular/common HttpClient function xsrfInterceptorFn uses a regular expression that does not normalize request URLs in the same way as the browser's WHATWG URL parser. With XSRF protection enabled, a mutating HTTP request to an attacker-controlled URL containing backslashes, stripped control characters or spaces, or removable ASCII whitespace can be misclassified as relative and same-origin, causing the interceptor to attach the X-XSRF-TOKEN header before the browser dispatches the request to a cross-origin host. With permissive CORS handling for the custom header, the attacker can obtain the victim's XSRF token and use it to perform cross-site request forgery against the victim session. This issue is fixed in versions 20.3.34 and 21.0.3.","aliases":["GHSA-jfgx-762w-99vr"],"modified":"2026-11-06T10:46:31.170822876Z","published":"2026-11-05T20:25:07.322Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-201","CWE-359"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111753.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111753.json"},{"type":"FIX","url":"https://github.com/angular/angular/commit/20474d3f0fd7c64071add6e84acf720627e5c19b"},{"type":"FIX","url":"https://github.com/angular/angular/commit/933ce817d53e25926844fa56af8230816763d08e"},{"type":"REPORT","url":"https://github.com/angular/angular/issues/71294"},{"type":"FIX","url":"https://github.com/angular/angular/pull/65683"},{"type":"FIX","url":"https://github.com/angular/angular/pull/71295"},{"type":"WEB","url":"https://github.com/angular/angular/releases/tag/21.0.3"},{"type":"WEB","url":"https://github.com/angular/angular/releases/tag/v20.3.34"},{"type":"ADVISORY","url":"https://github.com/angular/angular/security/advisories/GHSA-jfgx-762w-99vr"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-111753"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/angular/angular","events":[{"introduced":"0"},{"last_affected":"6d1753b46b7389c10aa17da2327043fbf5296035"},{"introduced":"40e2b5b4d13792ed7c46a1d22afcf6c12ac9c679"},{"fixed":"329172858b99ab3910b15c1e79bd49b0d5094b30"},{"introduced":"00dcbf2eeb3fd18ed39148e4bc9e49a5b35cae0c"},{"fixed":"c355ffd99e691fffe5a53e5069d8fc4291676869"},{"fixed":"20474d3f0fd7c64071add6e84acf720627e5c19b"},{"fixed":"933ce817d53e25926844fa56af8230816763d08e"}],"database_specific":{"extracted_events":[{"range":[{"introduced":"0"},{"last_affected":"19.2.25"}],"source":"AFFECTED_FIELD","strategy":"StringRangeExpression"},{"source":"AFFECTED_FIELD","strategy":"StringRangeExpression","range":[{"introduced":"20.0.0"},{"fixed":"20.3.34"}]},{"source":"AFFECTED_FIELD","strategy":"StringRangeExpression","range":[{"introduced":"21.0.0"},{"fixed":"21.0.3"}]},{"range":[{"fixed":"20474d3f0fd7c64071add6e84acf720627e5c19b"}],"source":"REFERENCES_COMMIT"},{"range":[{"fixed":"933ce817d53e25926844fa56af8230816763d08e"}],"source":"REFERENCES_COMMIT"},{"original_tag":"21.0.3","range":[{"fixed":"c355ffd99e691fffe5a53e5069d8fc4291676869"}],"source":"REFERENCES_TAG"},{"source":"REFERENCES_TAG","original_tag":"v20.3.34","range":[{"fixed":"329172858b99ab3910b15c1e79bd49b0d5094b30"}]}]}}],"versions":["v20.3.33","v20.3.32","v20.3.31","v20.3.30","v20.3.29","v20.3.28","v20.3.27","v20.3.26","v20.3.25","v20.3.24","v19.2.25","v19.2.24","v20.3.23","v19.2.23","v20.3.22","v20.3.21","v19.2.22","v19.2.21","v20.3.20","v20.3.19","v20.3.18","v19.2.20","v19.2.19","v20.3.17","v19.2.18","v20.3.16","20.3.15","19.2.17","21.0.2","20.3.14","19.2.16","21.0.1","20.3.13","21.0.0","vsix-21.0.0","20.3.12","20.3.11","20.3.10","20.3.9","20.3.8","20.3.7","20.3.6","20.3.5","20.3.4","20.3.3","20.3.2","20.3.1","19.2.15","20.3.0","20.3.0-rc.0","20.2.4","20.2.3","20.2.2","20.2.1","20.2.0","20.2.0-rc.1","20.2.0-rc.0","20.2.0-next.6","20.2.0-next.5","20.2.0-next.4","20.2.0-next.3","20.2.0-next.2","20.2.0-next.1","20.2.0-next.0","20.1.0-next.3","20.1.0-next.2","20.1.0-next.1","20.1.0-next.0","19.2.14","19.2.13","zone.js-0.15.1","19.2.12","19.2.11","19.2.10","19.2.9","19.2.8","20.0.0-next.8","19.2.7","20.0.0-next.7","19.2.6","20.0.0-next.6","19.2.5","20.0.0-next.5","19.2.4","20.0.0-next.4","19.2.3","20.0.0-next.3","19.2.2","20.0.0-next.2","19.2.1","20.0.0-next.1","20.0.0-next.0","19.2.0","19.2.0-rc.0","19.2.0-next.3","19.2.0-next.2","19.2.0-next.1","19.2.0-next.0","19.1.0-next.4","19.1.0-next.3","19.1.0-next.2","19.1.0-next.1","19.1.0-next.0","19.0.0-next.10","19.0.0-next.9","19.0.0-next.8","19.0.0-next.7","19.0.0-next.6","19.0.0-next.5","19.0.0-next.4","19.0.0-next.3","19.0.0-next.2","19.0.0-next.1","zone.js-0.15.0","19.0.0-next.0","18.2.0-next.4","zone.js-0.14.10","18.2.0-next.3","18.2.0-next.2","zone.js-0.14.8","18.2.0-next.1","18.2.0-next.0","18.1.0-next.4","18.1.0-next.3","18.1.0-next.2","zone.js-0.14.7","18.1.0-next.1","18.1.0-next.0","zone.js-0.14.6","zone.js-0.14.5","18.0.0-next.5","18.0.0-next.4","18.0.0-next.3","18.0.0-next.2","18.0.0-next.1","18.0.0-next.0","17.3.0-next.1","17.3.0-next.0","zone.js-0.14.4","17.2.0-next.1","17.2.0-next.0","zone.js-0.14.3","17.1.0-next.5","17.1.0-next.4","17.1.0-next.3","17.1.0-next.2","17.1.0-next.1","17.1.0-next.0","zone.js-0.14.2","zone.js-0.14.1","17.0.0-next.7","17.0.0-next.6","17.0.0-next.5","zone.js-0.14.0","17.0.0-next.4","zone.js-0.13.3","zone.js-0.13.2","17.0.0-next.3","17.0.0-next.2","17.0.0-next.1","17.0.0-next.0","16.2.0-next.4","16.2.0-next.3","16.2.0-next.2","16.2.0-next.1","16.2.0-next.0","zone.js-0.13.1","16.1.0-next.3","16.1.0-next.2","16.1.0-next.1","16.1.0-next.0","16.0.0-next.6","16.0.0-next.5","16.0.0-next.4","16.0.0-next.3","16.0.0-next.2","zone.js-0.13.0","16.0.0-next.1","16.0.0-next.0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