Improper Input Validation in Google Chrome WebRTC

Publication date: 2026-08-25

Last updated on: 2026-08-25

Assigner: Chrome

Description

Improper input validation in WebRTC in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process to bypass web origin policy via a crafted HTML page. (Chromium security severity: Medium)

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-08-25

Last Modified

2026-08-25

Generated

2026-08-26

AI Q&A

2026-08-26

EPSS Evaluated

N/A

NVD

CVE-2026-79255

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	152.0.7977.65

Helpful Resources

Exploitability

CWE

KEV

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.

Attack-Flow Graph

Executive Summary

This vulnerability involves improper input validation in WebRTC within Google Chrome versions before 152.0.7977.65. A remote attacker who had already compromised the renderer process could exploit this flaw to bypass web origin policy by using a crafted HTML page.

Impact Analysis

If you use an affected version of Google Chrome, an attacker could potentially access data from different websites or perform actions on your behalf without proper authorization. This could lead to unauthorized data exposure or manipulation.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, potentially violating GDPR (data protection) and HIPAA (health information privacy) requirements. Organizations may face compliance breaches if user data is exposed due to this flaw.

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