CVE-2026-54264
Angular: Sensitive Header Leakage on Cross-Origin Redirects in Angular Service Worker
Description
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.
INFO
Published Date :
June 22, 2026, 3:32 p.m.
Last Modified :
June 22, 2026, 3:32 p.m.
Remotely Exploit :
No
Source :
GitHub_M
Affected Products
The following products are affected by CVE-2026-54264
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update @angular/service-worker to version 22.0.1.
- Update @angular/service-worker to version 21.2.17.
- Update @angular/service-worker to version 20.3.25.
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CVE-2026-54264 vulnerability anywhere in the article.