Insufficient validation of untrusted input in WebSockets in Google Chrome prior to 151.0.7922.72 allowed a remote attacker who had compromised the… (CVE-2026-17768)
Insufficient validation of untrusted input in WebSockets in Google Chrome prior to 151.0.7922.72 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Medium)
AI Analysis
Technical Summary
CVE-2026-17768 describes a critical security vulnerability in Google Chrome's WebSockets feature before version 151.0.7922.72. The issue stems from insufficient validation of untrusted input, which can be exploited by a remote attacker who has already compromised the renderer process. Exploitation could lead to a sandbox escape, allowing the attacker to break out of the browser's security boundaries. The vulnerability is classified under CWE-20 (Improper Input Validation) and has a CVSS v3.1 score of 9.6, indicating critical severity with high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to escape the Chrome sandbox, potentially leading to full system compromise or unauthorized access to sensitive information. The attack requires prior compromise of the renderer process and user interaction (UI required). The vulnerability affects confidentiality, integrity, and availability at a high level.
Mitigation Recommendations
A fix is available in Google Chrome version 151.0.7922.72 and later. Users and administrators should update to this version or newer to remediate the vulnerability. Since this is not a cloud service, patching the client software is required. No additional mitigations are specified.
Insufficient validation of untrusted input in WebSockets in Google Chrome prior to 151.0.7922.72 allowed a remote attacker who had compromised the… (CVE-2026-17768)
Description
Insufficient validation of untrusted input in WebSockets in Google Chrome prior to 151.0.7922.72 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Medium)
CVSS v3.1
Score 9.6critical
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-17768 describes a critical security vulnerability in Google Chrome's WebSockets feature before version 151.0.7922.72. The issue stems from insufficient validation of untrusted input, which can be exploited by a remote attacker who has already compromised the renderer process. Exploitation could lead to a sandbox escape, allowing the attacker to break out of the browser's security boundaries. The vulnerability is classified under CWE-20 (Improper Input Validation) and has a CVSS v3.1 score of 9.6, indicating critical severity with high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to escape the Chrome sandbox, potentially leading to full system compromise or unauthorized access to sensitive information. The attack requires prior compromise of the renderer process and user interaction (UI required). The vulnerability affects confidentiality, integrity, and availability at a high level.
Mitigation Recommendations
A fix is available in Google Chrome version 151.0.7922.72 and later. Users and administrators should update to this version or newer to remediate the vulnerability. Since this is not a cloud service, patching the client software is required. No additional mitigations are specified.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-xgpf-25jc-xvgf
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-17768"]
- Database Specific Severity
- CRITICAL
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a6daad1bf32cb7a34667561
Added to database: 08/01/2026, 08:14:09 UTC
Last enriched: 08/01/2026, 08:18:21 UTC
Last updated: 09/14/2026, 10:01:29 UTC
Views: 46
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