CVE-2026-11676: Insufficient validation of untrusted input in Google Chrome
CVE-2026-11676 is a high-severity vulnerability in Google Chrome on Linux and ChromeOS platforms prior to version 149.0.7827.103. It involves insufficient validation of untrusted input in the Dawn component, which could allow a remote attacker who has already compromised the renderer process to potentially escape the sandbox via a crafted HTML page. This vulnerability affects the security boundary of the browser and could lead to full compromise of the affected system.
AI Analysis
Technical Summary
This vulnerability arises from insufficient validation of untrusted input in the Dawn graphics component of Google Chrome on Linux and ChromeOS. An attacker who has compromised the renderer process could exploit this flaw by delivering a specially crafted HTML page to perform a sandbox escape, thereby breaking out of the restricted execution environment. The issue is addressed in Chrome version 149.0.7827.103, which fixes the vulnerability. The CVSS v3.1 base score is 8.3, reflecting high impact on confidentiality, integrity, and availability, with network attack vector, high attack complexity, no privileges required, user interaction required, and scope change.
Potential Impact
Successful exploitation allows an attacker with control over the renderer process to escape the sandbox, potentially gaining higher privileges on the host system. This could lead to full system compromise, including unauthorized access to sensitive data and control over the affected machine. The vulnerability affects Chrome on Linux and ChromeOS prior to version 149.0.7827.103.
Mitigation Recommendations
A fix is available in Google Chrome version 149.0.7827.103. Users and administrators should update affected Chrome installations on Linux and ChromeOS to this version or later to remediate the vulnerability. No additional mitigations are specified by the vendor advisory.
CVE-2026-11676: Insufficient validation of untrusted input in Google Chrome
Description
CVE-2026-11676 is a high-severity vulnerability in Google Chrome on Linux and ChromeOS platforms prior to version 149.0.7827.103. It involves insufficient validation of untrusted input in the Dawn component, which could allow a remote attacker who has already compromised the renderer process to potentially escape the sandbox via a crafted HTML page. This vulnerability affects the security boundary of the browser and could lead to full compromise of the affected system.
CVSS v3.1
Score 8.3high
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability arises from insufficient validation of untrusted input in the Dawn graphics component of Google Chrome on Linux and ChromeOS. An attacker who has compromised the renderer process could exploit this flaw by delivering a specially crafted HTML page to perform a sandbox escape, thereby breaking out of the restricted execution environment. The issue is addressed in Chrome version 149.0.7827.103, which fixes the vulnerability. The CVSS v3.1 base score is 8.3, reflecting high impact on confidentiality, integrity, and availability, with network attack vector, high attack complexity, no privileges required, user interaction required, and scope change.
Potential Impact
Successful exploitation allows an attacker with control over the renderer process to escape the sandbox, potentially gaining higher privileges on the host system. This could lead to full system compromise, including unauthorized access to sensitive data and control over the affected machine. The vulnerability affects Chrome on Linux and ChromeOS prior to version 149.0.7827.103.
Mitigation Recommendations
A fix is available in Google Chrome version 149.0.7827.103. Users and administrators should update affected Chrome installations on Linux and ChromeOS to this version or later to remediate the vulnerability. No additional mitigations are specified by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-06-08T21:33:49.459Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0153744567.html","vendor":"Google"}]
Threat ID: 6a2754eae29bf47b50c4c46f
Added to database: 06/08/2026, 23:48:58 UTC
Last enriched: 06/16/2026, 08:16:08 UTC
Last updated: 07/31/2026, 19:22:57 UTC
Views: 55
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