CVE-2026-12437

EUVD-2026-37522
Use after free in WebShare in Google Chrome on Windows prior to 149.0.7827.155 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.3 HIGH
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 22%
Affected Products (NVD)
VendorProductVersion
googlechrome
𝑥
< 149.0.7827.155
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
chromium
bookworm
150.0.7871.100-1~deb12u1
fixed
bookworm (security)
150.0.7871.181-1~deb12u1
fixed
bullseye
vulnerable
bullseye (security)
vulnerable
forky
150.0.7871.181-1
fixed
sid
151.0.7922.47-1
fixed
trixie
150.0.7871.100-1~deb13u1
fixed
trixie (security)
150.0.7871.181-1~deb13u1
fixed
Common Weakness Enumeration
References
https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_01750511403.html
https://issues.chromium.org/issues/516496659