CVE-2026-12018

HIGH8.8

Inappropriate implementation in Mojo in Google Chrome on Windows prior to 149

Published Jun 11, 2026

Modified Yesterday

Fix available

Details

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)

Affected Packages

Google Chrome

Windows 10 (1507)Windows 10 (1607) / Server 2016Windows 10 (1809) / Server 2019Windows 10 (1903)Windows 10 (1909)

Fixed in:

149.0.7827.115

References

WEB

https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_01962725236.html

WEB

https://issues.chromium.org/issues/516808201

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2026-12018

CVSS Analysis

CVSS v3.1

8.8

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Privileges Required

NonePR:N

User Interaction

RequiredUI:R

Scope

UnchangedS:U

Impact

Confidentiality

HighC:H

Integrity

HighI:H

Availability

HighA:H

8.8/CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Ecosystems(22)

Windows 10 (1507)Windows 10 (1607) / Server 2016 Windows 10 (1809) / Server 2019 Windows 10 (1903)Windows 10 (1909)

Timeline

PublishedJun 11, 2026

ModifiedJun 12, 2026