CVE-2026-54264 (GCVE-0-2026-54264)

Vulnerability from cvelistv5 – Published: 2026-06-22 15:32 – Updated: 2026-06-23 13:46
VLAI
Title
Angular: Sensitive Header Leakage on Cross-Origin Redirects in Angular Service Worker
Summary
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
8.3 (High)
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
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-23 13:46 UTC
CWE
  • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
  • CWE-359 - Exposure of Private Personal Information to an Unauthorized Actor
Assigner
References
Impacted products
Vendor Product Version CPE status
angular angular Affected: >= 22.0.0-next.0 < 22.0.1
Affected: >= 21.0.0-next.0 < 21.2.17
Affected: >= 20.0.0-next.0 < 20.3.25
Affected: <= 19.2.25
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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