CVE-2026-79121: Improper input validation in Google Chrome
Description
CVE-2026-79121 is a high-severity vulnerability in Google Chrome's Chromecast component prior to version 152.0.7977.65. It involves improper input validation that could allow a remote attacker who has compromised the renderer process to execute arbitrary code outside the sandbox by using a crafted HTML page. This vulnerability has a CVSS score of 8.3 and is considered critical by Chromium security. No known exploits are reported in the wild. The vendor has published an advisory but has not explicitly stated the remediation status in the provided data.
CVSS v3.1
Score 8.3high
Affected software
Chrome
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Google Chrome's Chromecast feature arises from improper input validation. An attacker with control over the renderer process can leverage a crafted HTML page to execute arbitrary code outside the sandbox environment, potentially compromising the system. The issue affects Chrome versions prior to 152.0.7977.65. The CVSS 3.1 base score is 8.3, reflecting network attack vector, high impact on confidentiality, integrity, and availability, and requiring user interaction with high attack complexity.
Potential Impact
Successful exploitation could lead to arbitrary code execution outside the sandbox, allowing an attacker to gain elevated privileges and potentially take full control of the affected system. This compromises confidentiality, integrity, and availability of the system running the vulnerable Chrome version.
Mitigation Recommendations
The vendor has released a stable channel update for desktop Chrome as referenced in the advisory URL. Users and administrators should update Google Chrome to version 152.0.7977.65 or later to remediate this vulnerability. Patch status is not explicitly confirmed in the provided data, so checking the vendor advisory for the latest remediation guidance is recommended.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-08-25T06:09:53.033Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html","vendor":"Google"}]
Threat ID: 6a8df9d2acd9273b49ac709a
Added to database: 08/25/2026, 20:23:46 UTC
Last enriched: 09/09/2026, 23:07:29 UTC
Last updated: 10/08/2026, 18:48:48 UTC
Views: 28
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