CVE-2026-79121

Analyzed Analyzed - Analysis Complete

Improper Input Validation in Chromecast in Google Chrome

Publication date: 2026-08-25

Last updated on: 2026-08-27

Assigner: Chrome

Description

Improper input validation in Chromecast in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Critical)

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-08-25

Last Modified

2026-08-27

Generated

2026-09-15

AI Q&A

2026-08-26

EPSS Evaluated

2026-09-14

NVD

CVE-2026-79121

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 152.0.7977.65 (exc)

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 is an improper input validation flaw in Chromecast within Google Chrome versions before 152.0.7977.65. A remote attacker who already compromised the renderer process could exploit this to potentially execute arbitrary code outside the sandbox by tricking a user into visiting a specially crafted HTML page.

Detection Guidance

This vulnerability is specific to Chromecast in Google Chrome versions prior to 152.0.7977.65. Detection involves checking the installed Chrome version. On Windows, run: chrome://version/ in the browser. On Linux, check via terminal with: google-chrome --version. If the version is below 152.0.7977.65, the system is vulnerable.

Impact Analysis

If you use an affected version of Google Chrome with Chromecast, an attacker could take control of your device by exploiting this flaw. This might allow them to install malware, steal data, or monitor your activities without your knowledge.

Compliance Impact

This vulnerability does not directly affect compliance with GDPR, HIPAA, or similar standards as it involves a technical flaw in Chromecast within Google Chrome. However, if exploited, it could lead to unauthorized code execution, potentially compromising user data and violating privacy requirements under these regulations.

Mitigation Strategies

Update Google Chrome to version 152.0.7977.65 or later to address the vulnerability.

Hi! I’m here to help you understand CVE-2026-79121. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70