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Angular Exposure of Sensitive Information to an Unauthorized Actor Vulnerability - CVE-2026-54264 - Vulnerability Database
Angular

Angular Exposure of Sensitive Information to an Unauthorized Actor Vulnerability - CVE-2026-54264

Medium
Reference: CVE-2026-54264
NVD Link: https://nvd.nist.gov/vuln/detail/CVE-2026-54264
Title: Angular Exposure of Sensitive Information to an Unauthorized Actor Vulnerability
Overview:

Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 22.0.1 21.2.17 and 20.3.25 an information disclosure vulnerability exists in the angular/service-worker package of the Angular framework. When the Service Worker fetches assets it preserves metadata (such as headers) from the original request. However on cross-origin redirects the Service Worker fails to strip sensitive headers violating the Fetch redirect algorithm. This allows a remote attacker to obtain sensitive credentials (e.g. Authorization tokens Proxy-Authorization credentials or session cookies) by triggering a cross-origin redirect to an untrusted external origin. This vulnerability is fixed in 22.0.1 21.2.17 and 20.3.25.