CVE-2026-3918 — Use After Free in Google Chrome

CWE-416 — Use After Free9 documents9 sources
Severity
8.8HIGHNVD
EPSS
0.1%
top 69.31%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Google ChromeChromium
Timeline
PublishedMar 11
Latest updateMar 24

Description

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)

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitability: 2.8 | Impact: 5.9

Affected Packages3 packages

▶CVEListV5google/chrome146.0.7680.71 — 146.0.7680.71
▶NVDgoogle/chrome< 146.0.7680.71
▶Debianchromium/chromium< 146.0.7680.71-1~deb12u1+2

🔴Vulnerability Details

3
GHSA
GHSA-j53j-3fvf-64m5: Use after free in WebMCP in Google Chrome prior to 146↗2026-03-12
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CVEList
CVE-2026-3918: Use after free in WebMCP in Google Chrome prior to 146↗2026-03-11
▶
OSV
CVE-2026-3918: Use after free in WebMCP in Google Chrome prior to 146↗2026-03-11
▶

📋Vendor Advisories

4
Chrome
Stable Channel Update for ChromeOS / ChromeOS Flex: CVE-2026-3918↗2026-03-24
▶
Red Hat
chromium-browser: Use after free in WebMCP↗2026-03-10
▶
Microsoft
Chromium: CVE-2026-3918 Use after free in WebMCP↗2026-03-10
▶
Debian
CVE-2026-3918: chromium - Use after free in WebMCP in Google Chrome prior to 146.0.7680.71 allowed a remot...↗2026
▶

🕵️Threat Intelligence

1
Wiz
CVE-2026-3918 Impact, Exploitability, and Mitigation Steps | Wiz↗
▶
CVE-2026-3918 — Use After Free in Google Chrome | cvebase