Improper input validation in DevTools in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process to… (CVE-2026-79203)
Description
An improper input validation vulnerability exists in DevTools of Google Chrome versions prior to 152.0.7977.65. This flaw allows a remote attacker who has already compromised the renderer process to bypass site isolation by using a crafted HTML page. The vulnerability has a low severity rating and a CVSS score of 3.1.
CVSS v3.1
Score 3.1low
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-79203 is an input validation vulnerability in the DevTools component of Google Chrome before version 152.0.7977.65. It enables a remote attacker, with control over the renderer process, to bypass site isolation protections via a specially crafted HTML page. The issue is classified under CWE-20 (Improper Input Validation) and has a low impact on confidentiality with no impact on integrity or availability. The vulnerability requires user interaction and has a high attack complexity.
Potential Impact
The vulnerability allows bypassing site isolation, which could reduce the effectiveness of security boundaries between sites in the browser. However, it requires prior compromise of the renderer process and user interaction, limiting its impact. The confidentiality impact is low, and there is no impact on integrity or availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or official fix information is provided, users should monitor for updates from Google Chrome regarding this vulnerability. No specific mitigations are detailed in the available data.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-h3h3-g7fm-v4rf
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-79203"]
- Database Specific Severity
- LOW
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a91a875acd9273b49069d26
Added to database: 08/28/2026, 15:25:41 UTC
Last enriched: 09/09/2026, 23:08:40 UTC
Last updated: 10/13/2026, 18:48:24 UTC
Views: 62
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