CVE-2026-3918: High Use after free in WebMCP.
Chromium: CVE-2026-3918 Use after free in WebMCP
Other sources
This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.
— Microsoft
Use after free in WebMCP in Google Chrome prior to 146.0.7680.71 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
— NVD
Credit
Affected Software
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What is the severity of CVE-2026-3918?
The severity of CVE-2026-3918 is classified as High.
How do I fix CVE-2026-3918?
To fix CVE-2026-3918, update Google Chrome to version 146.0.7680.71 or later.
What type of vulnerability is CVE-2026-3918?
CVE-2026-3918 is a use after free vulnerability in the WebMCP within Google Chrome.
Can CVE-2026-3918 be exploited remotely?
Yes, CVE-2026-3918 allows a remote attacker to potentially exploit heap corruption via a crafted HTML page.
What versions of Google Chrome are affected by CVE-2026-3918?
CVE-2026-3918 affects all versions of Google Chrome prior to 146.0.7680.71.