CVE-2026-101897Angular DevTools (Local DoS)
Updated under an hour ago ()
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It affects angular and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 5.1 MEDIUM (v4.0, CNA)CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:N/SI:L/SA:H
- Weakness (CWE)
- CWE-346, CWE-441, CWE-940
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Awaiting Analysis
- Record last updated
- Oct 14, 2026
- First seen by InfoSec Signals
- Oct 14, 2026
Affected products
angular angular angular:angular (from the name) | before 22.2.0-rc.0 | CNA record |
angular DevTools angular:devtools (from the name) | from 1.20.0, < 1.21.1 | CNA record |
References
- https://github.com/angular/angular/security/advisories/GHSA-r653-wxfp-pp9cx-refsource-confirm
- https://github.com/angular/angular/pull/70623x-refsource-misc
- https://github.com/angular/angular/commit/7c053599c79a6ddd785a9bae33ff9fc7b355ea0dx-refsource-misc
- https://github.com/angular/angular/commit/cf492e8a372e2bbddb84987df12c33a52c23c72fx-refsource-misc
- https://github.com/angular/angular/commit/e02c4d89bcf5da9af499e0dfbba8c29206976ab3x-refsource-misc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.