OS-level privilege escalation in Mojo in Google Chrome for Windows
CVE-2026-12018 is a high-severity inappropriate implementation flaw in the Mojo component of Google Chrome on Windows prior to 149.0.7827.115. According to the provided content, the issue allows a local attacker to perform OS-level privilege escalation by means of a malicious file. The CVE record classifies the weakness as CWE-269 (Improper Privilege Management). Specific vulnerable functions or code paths are not provided in the available content.
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Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
If you can’t patch tonight, do this now.
Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A privilege escalation vulnerability in Mojo in Google Chrome on Windows that could allow a local attacker to achieve OS-level privilege escalation via a malicious file.
A high-severity inappropriate implementation vulnerability in Chrome Mojo.
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.