CVSS 4.0
8.3 highCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:H/SI:N/SA:NCVE-2026-54264
High (8.3) in angular angular. EPSS 0.4% chance of exploitation in the next 30 days. Fixed in @angular/service-worker 20.3.25, 21.2.17, 22.0.1.
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.
Severity
CVSS 3.1
6.1 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 33% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-200, CWE-359
- Published
- Modified
- Record from
- the NVD, synced
Affected
- angular:angular
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-qxh6-94w6-9r5p | npm | @angular/service-worker | >=22.0.0-next.0 <22.0.1 | 22.0.1 |
| GHSA-qxh6-94w6-9r5p | npm | @angular/service-worker | >=21.0.0-next.0 <21.2.17 | 21.2.17 |
| GHSA-qxh6-94w6-9r5p | npm | @angular/service-worker | >=20.0.0-next.0 <20.3.25 | 20.3.25 |
| GHSA-qxh6-94w6-9r5p | npm | @angular/service-worker | <=19.2.25 | no fix published |