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Angular DevTools (Local DoS)

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

CVE-2026-101897

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-101897

angular

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

DevTools

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "angular",
    "product": "angular",
    "versions": [
      {
        "status": "affected",
        "version": "< 22.2.0-rc.0"
      }
    ]
  },
  {
    "vendor": "angular",
    "product": "DevTools",
    "versions": [
      {
        "status": "affected",
        "version": ">= 1.20.0, < 1.21.1"
      }
    ]
  }
]
Related CVEs
CVE-2026-101897

Source reference: /cveMetadata/cveId

Publisher severity

medium

Source reference: /containers/cna/metrics

Event
#22064 · Revision 1
Added to Heist Feed
Publisher date
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