CVE-2026-101897
Severity not reportedAngular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages.
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.
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/angular/angular/commit/7c053599c79a6ddd785a9bae33ff9fc7b355ea0d security-advisories@github.com
- https://github.com/angular/angular/commit/cf492e8a372e2bbddb84987df12c33a52c23c72f security-advisories@github.com
- https://github.com/angular/angular/commit/e02c4d89bcf5da9af499e0dfbba8c29206976ab3 security-advisories@github.com
- https://github.com/angular/angular/pull/70623 security-advisories@github.com
- https://github.com/angular/angular/security/advisories/GHSA-r653-wxfp-pp9c security-advisories@github.com