CVE-2026-12018: Inappropriate implementation in Google Chrome
Inappropriate implementation in Mojo in Google Chrome on Windows prior to 149.0.7827.115 allowed a local attacker to perform OS-level privilege escalation via a malicious file. (Chromium security severity: High)
AI Analysis
Technical Summary
CVE-2026-12018 is a local privilege escalation vulnerability in Google Chrome on Windows caused by an inappropriate implementation in the Mojo component. This flaw allows a local attacker to escalate privileges to the OS level by using a specially crafted malicious file. The vulnerability affects Chrome versions prior to 149.0.7827.115. Although a vendor advisory exists, it does not explicitly confirm the availability of a patch or remediation level. The issue is classified as high severity by Chromium security.
Potential Impact
Successful exploitation of this vulnerability enables a local attacker to escalate their privileges on the Windows operating system, potentially gaining higher-level access than intended. This could lead to unauthorized actions at the OS level. There are no known exploits in the wild at this time.
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 official fixes are confirmed, users should apply updates promptly once available and avoid executing untrusted files locally.
CVE-2026-12018: Inappropriate implementation in Google Chrome
Description
Inappropriate implementation in Mojo in Google Chrome on Windows prior to 149.0.7827.115 allowed a local attacker to perform OS-level privilege escalation via a malicious file. (Chromium security severity: High)
CVSS v3.1
Score 8.8high
Affected software
pkg:github/chromium/chromiumRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-12018 is a local privilege escalation vulnerability in Google Chrome on Windows caused by an inappropriate implementation in the Mojo component. This flaw allows a local attacker to escalate privileges to the OS level by using a specially crafted malicious file. The vulnerability affects Chrome versions prior to 149.0.7827.115. Although a vendor advisory exists, it does not explicitly confirm the availability of a patch or remediation level. The issue is classified as high severity by Chromium security.
Potential Impact
Successful exploitation of this vulnerability enables a local attacker to escalate their privileges on the Windows operating system, potentially gaining higher-level access than intended. This could lead to unauthorized actions at the OS level. There are no known exploits in the wild at this time.
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 official fixes are confirmed, users should apply updates promptly once available and avoid executing untrusted files locally.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-06-11T18:16:05.286Z
- 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: 6a2b2912815e7002b8341777
Added to database: 6/11/2026, 9:30:58 PM
Last enriched: 6/11/2026, 9:46:30 PM
Last updated: 6/12/2026, 4:55:11 AM
Views: 7
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