Angular DevTools (Local DoS)

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-101897
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-14 16:17:29 UTC
Updated2026-10-14 16:17:29 UTC
DescriptionAngular 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.

Risk And Classification

Primary CVSS: v4.0 5.1 MEDIUM from [email protected]

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Problem Types: CWE-346 | CWE-441 | CWE-940 | CWE-346 CWE-346: Origin Validation Error | CWE-441 CWE-441: Unintended Proxy or Intermediary ('Confused Deputy') | CWE-940 CWE-940: Improper Verification of Source of a Communication Channel

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary5.1MEDIUMCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:N/SI:L/SA:H/E:X/C...
4.0CNADECLARED5.1MEDIUMCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:N/SI:L/SA:H

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
High
Attack Requirements
None
Privileges Required
None
User Interaction
Passive
Confidentiality
None
Integrity
None
Availability
None
Sub Conf.
None
Sub Integrity
Low
Sub Availability
High

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Angular Angular affected < 22.2.0-rc.0 Not specified
CNA Angular DevTools affected >= 1.20.0, < 1.21.1 Not specified

References

ReferenceSourceLinkTags
github.com/angular/angular/security/advisories/GHSA-r653-wxfp-pp9c [email protected] github.com
github.com/angular/angular/pull/70623 [email protected] github.com
github.com/angular/angular/commit/cf492e8a372e2bbddb84987df12c33a52c23c72f [email protected] github.com
github.com/angular/angular/commit/7c053599c79a6ddd785a9bae33ff9fc7b355ea0d [email protected] github.com
github.com/angular/angular/commit/e02c4d89bcf5da9af499e0dfbba8c29206976ab3 [email protected] github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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