CVE-2026-121125
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Information Leak in Google Chrome ServiceWorker

Publication date: 2026-11-03

Last updated on: 2026-11-03

Assigner: Chrome

Description
Information leak in ServiceWorker in Google Chrome prior to 157.0.8103.38 allowed a remote attacker who had compromised the renderer process to obtain sensitive information via a crafted HTML page. (Chromium security severity: Low)

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Meta Information

Published
2026-11-03
Last Modified
2026-11-03
Generated
2026-11-04
AI Q&A
2026-11-04
EPSS Evaluated
N/A
NVD
CVE-2026-121125
EUVD
EUVD-2026-116323

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Google Chrome 157.0.8103.38

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-200 The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

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Executive Summary

This vulnerability is an information leak in Google Chrome's ServiceWorker feature. It allows a remote attacker who has already compromised the renderer process to access sensitive data through a specially crafted HTML page.

Impact Analysis

If you use Google Chrome versions prior to 157.0.8103.38, an attacker could exploit this to steal private information from your browsing session if they can run malicious code in your browser's renderer process.

Mitigation Strategies

Update Google Chrome to version 157.0.8103.38 or later to address the vulnerability.

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