CVE-2026-54264
Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages.
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | @angular/service-worker | >= 22.0.0-next.0, < 22.0.1 | 22.0.1 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Angular | Angular | through 19.2.25 from 20.0.0 before 20.3.25 from 21.0.0 before 21.2.17 from 22.0.0 before 22.0.1 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-qxh6-94w6-9r5p
- https://github.com/angular/angular/security/advisories/GHSA-qxh6-94w6-9r5p
- https://github.com/angular/angular/pull/69029
- https://github.com/angular/angular/commit/47d68dcb26266316647133ab6385e77fc3e5ae08
- https://nvd.nist.gov/vuln/detail/CVE-2026-54264