CVE-2026-101897

UNKNOWN 0.0

Angular DevTools (Local DoS)

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. From 1.20.0 until 1.21.1, the Angular DevTools background service worker accepts chrome.runtime.sendMessage runtime messages from untrusted web pages or third-party content scripts without adequately verifying the message source. An untrusted sender that obtains a valid randomized victim tabId can direct the extension to use chrome.debugger to attach to another browser tab and trigger Chrome DevTools Protocol breakpoints. This can display the debugging banner, pause JavaScript execution, and prevent interaction with the target tab, but it does not provide remote code execution, privilege escalation, or cross-origin access to memory or credentials. This issue is fixed in version 1.21.1.

CWE	CWE-346 CWE-441 CWE-940
Vendor	angular
Product	angular
Published	Oct 14, 2026

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Affected Versions

angular / angular

< 22.2.0-rc.0

angular / DevTools

>= 1.20.0, < 1.21.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/angular/angular/security/advisories/GHSA-r653-wxfp-pp9c github.com: https://github.com/angular/angular/pull/70623 github.com: https://github.com/angular/angular/commit/7c053599c79a6ddd785a9bae33ff9fc7b355ea0d github.com: https://github.com/angular/angular/commit/cf492e8a372e2bbddb84987df12c33a52c23c72f github.com: https://github.com/angular/angular/commit/e02c4d89bcf5da9af499e0dfbba8c29206976ab3