Exposure of Private Personal Information to an Unauthorized Actor Affecting @angular/service-worker package, versions <20.3.25>=21.0.0-next.0 <21.2.17>=22.0.0-next.0 <22.0.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JS-ANGULARSERVICEWORKER-17359090
- published17 Jun 2026
- disclosed15 Jun 2026
- creditCodeMender from Google DeepMind
Introduced: 15 Jun 2026
CVE-2026-54264 (opens in a new tab)How to fix?
Upgrade @angular/service-worker to version 20.3.25, 21.2.17, 22.0.1 or higher.
Overview
@angular/service-worker is an Angular - service worker tooling!
Affected versions of this package are vulnerable to Exposure of Private Personal Information to an Unauthorized Actor via the newHeaders function. An attacker can obtain sensitive credentials and session identifiers by triggering a cross-origin redirect to an attacker-controlled or untrusted domain.
Note: This is only exploitable if the application uses the service worker to fetch assets with credentialed headers and those requests are redirected to a different origin.