CVE-2026-17978
Received Received - Intake

Side-channel Information Leakage in Google Chrome WebCodecs

Publication date: 2026-07-30

Last updated on: 2026-07-30

Assigner: Chrome

Description
Side-channel information leakage in WebCodecs in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: Low)

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Meta Information

Published
2026-07-30
Last Modified
2026-07-30
Generated
2026-07-30
AI Q&A
2026-07-30
EPSS Evaluated
N/A
NVD
CVE-2026-17978
EUVD
EUVD-2026-50904

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
google chrome to 151.0.7922.72 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-1300 The device does not contain sufficient protection mechanisms to prevent physical side channels from exposing sensitive information due to patterns in physically observable phenomena such as variations in power consumption, electromagnetic emissions (EME), or acoustic emissions.

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Executive Summary

This vulnerability is a side-channel information leakage issue in WebCodecs, a web API for encoding and decoding media in Google Chrome. A remote attacker could exploit it by crafting a malicious HTML page to access potentially sensitive data from the memory of the affected process.

Detection Guidance

This vulnerability is specific to Google Chrome versions prior to 151.0.7922.72. To detect it, check your Chrome version by running chrome://version/ in the browser address bar. If your version is below 151.0.7922.72, the system is vulnerable.

Impact Analysis

If exploited, this vulnerability could allow an attacker to steal sensitive information from your system, such as passwords, personal data, or other confidential details, while you are using Google Chrome.

Compliance Impact

This vulnerability could lead to unauthorized data exposure, potentially violating privacy regulations like GDPR or HIPAA if sensitive personal or health data is leaked. Organizations must ensure proper mitigation to maintain compliance.

Mitigation Strategies

Update Google Chrome to version 151.0.7922.72 or later immediately. This can be done via the browser's built-in update mechanism or by downloading the latest version from Google's official site.

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