CVE-2026-11126
Analyzed Analyzed - Analysis Complete
Cross-Origin Data Leak in Google Chrome DevTools

Publication date: 2026-06-04

Last updated on: 2026-06-09

Assigner: Chrome

Description
Inappropriate implementation in DevTools in Google Chrome prior to 149.0.7827.53 allowed an attacker who convinced a user to install a malicious extension to leak cross-origin data via a crafted Chrome Extension. (Chromium security severity: Medium)
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Meta Information
Published
2026-06-04
Last Modified
2026-06-09
Generated
2026-06-25
AI Q&A
2026-06-05
EPSS Evaluated
2026-06-24
NVD
CVE-2026-11126
EUVD
EUVD-2026-34587
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
google chrome to 149.0.7827.53 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-20 The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
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Executive Summary

This vulnerability is an inappropriate implementation in the DevTools component of Google Chrome versions prior to 149.0.7827.53. It allows an attacker who convinces a user to install a malicious Chrome extension to leak cross-origin data by using a specially crafted extension.

Impact Analysis

If exploited, this vulnerability can lead to unauthorized leakage of cross-origin data through a malicious Chrome extension. This means sensitive information from different origins or websites could be exposed to attackers, potentially compromising user privacy and security.

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