---
cve: "CVE-2026-54264"
severity: "HIGH"
cvss: 8.3
epss: "24%"
vendor: "angular"
kev: false
exploited: false
published: "2026-06-22 16:16:39"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-18T00:31:47+02:00"
---

# CVE-2026-54264

> 8.3 HIGH · 🧪 PoC

## Beschreibung

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.

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |

## Patch verfügbar (OSV)

- a075161392496629531812ff00762259aae03a98 (Commit)
- 31c25e2e85704f12facd9b4b823aa54b943251eb (Commit)

## Referenzen

- <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>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-54264) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_