CVE-2026-12009: Insufficient validation of untrusted input in Google Chrome
Insufficient validation of untrusted input in Accessibility in Google Chrome on Mac prior to 149.0.7827.115 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)
AI Analysis
Technical Summary
This vulnerability arises from insufficient validation of untrusted input within the Accessibility feature of Google Chrome on Mac platforms. An attacker with control over the renderer process could exploit this flaw to perform a sandbox escape, which could lead to elevated privileges or further compromise of the system. The vulnerability affects Chrome versions before 149.0.7827.115. The vendor advisory linked does not explicitly confirm patch availability or remediation status.
Potential Impact
Successful exploitation could allow an attacker who has compromised the renderer process to escape the sandbox environment, potentially leading to increased privileges and further system compromise. This elevates the risk level significantly as sandbox escapes undermine one of the core security boundaries in Chrome.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory at https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_01962725236.html for current remediation guidance. Until an official fix is confirmed, users should exercise caution with untrusted content and consider limiting exposure to potentially malicious web pages.
CVE-2026-12009: Insufficient validation of untrusted input in Google Chrome
Description
Insufficient validation of untrusted input in Accessibility in Google Chrome on Mac prior to 149.0.7827.115 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)
CVSS v3.1
Score 8.3high
Affected software
pkg:github/chromium/chromiumRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability arises from insufficient validation of untrusted input within the Accessibility feature of Google Chrome on Mac platforms. An attacker with control over the renderer process could exploit this flaw to perform a sandbox escape, which could lead to elevated privileges or further compromise of the system. The vulnerability affects Chrome versions before 149.0.7827.115. The vendor advisory linked does not explicitly confirm patch availability or remediation status.
Potential Impact
Successful exploitation could allow an attacker who has compromised the renderer process to escape the sandbox environment, potentially leading to increased privileges and further system compromise. This elevates the risk level significantly as sandbox escapes undermine one of the core security boundaries in Chrome.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory at https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_01962725236.html for current remediation guidance. Until an official fix is confirmed, users should exercise caution with untrusted content and consider limiting exposure to potentially malicious web pages.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-06-11T18:16:02.919Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_01962725236.html","vendor":"Google"}]
Threat ID: 6a2b290f815e7002b83416e6
Added to database: 6/11/2026, 9:30:55 PM
Last enriched: 6/11/2026, 10:00:21 PM
Last updated: 6/12/2026, 3:15:00 AM
Views: 4
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