# CVE-2026-50169

## Summary

- **CVE ID:** CVE-2026-50169
- **Severity:** MEDIUM
- **CVSS Score:** 5.7 (CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N)
- **CWE:** CWE-200, CWE-441, CWE-524
- **Published:** Jun 22, 2026
- **Last Modified:** Jun 22, 2026

## Description

Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 22.0.0-rc.2, 21.2.15 20.3.22, and 19.2.23, an issue in the @angular/service-worker package compromises the integrity of request-policy enforcement during request reconstruction. When the Angular Service Worker intercepts network requests for matched assets, it reconstructs a new Request object using an internal helper function. During this reconstruction process, the helper function strips the strict, client-defined request redirect policy configuration (such as redirect: 'error'), falling back to the browser's default 'follow' strategy. If the target web application makes client-side requests with a strict policy (e.g., expecting a network error instead of automatically following redirects), the service worker will bypass this instruction and automatically follow HTTP 3xx redirects to other destinations. This acts as an unintended proxy/intermediary ("Confused Deputy") and can result in cookie/credential exposure or same-origin session-restricted data leakage if public dynamic routes redirect to sensitive routes. This vulnerability is fixed in 22.0.0-rc.2, 21.2.15, 20.3.22, and 19.2.23.

## Affected Products

- angular — angular (>= 22.0.0-next.0, < 22.0.0-rc.2)
- angular — angular (>= 21.0.0-next.0, < 21.2.15)
- angular — angular (>= 20.0.0-next.0, < 20.3.22)
- angular — angular (>= 19.0.0-next.0, < 19.2.23)
- angular — angular (<= 18.2.14)

## References

- [CNA](https://github.com/angular/angular/security/advisories/GHSA-gv2q-mqqv-365m)
- [CNA](https://github.com/angular/angular/pull/67494)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.23%
- **EPSS Percentile:** 13.5

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._