CVE-2026-12459

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-06-17 · updated 2026-10-26
Weakness: CWE-79

Description

Inappropriate implementation in Serial in Google Chrome prior to 149.0.7827.155 allowed a remote attacker to inject arbitrary scripts or HTML (UXSS) via a crafted HTML page. (Chromium security severity: High)

Affected products

Google Chrome: before 149.0.7827.155 — fixed in 149.0.7827.155

How to fix

Upgrade to a fixed version: Google Chrome 149.0.7827.155. Check the vendor advisory for mitigations.

References

https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_01750511403.html
https://issues.chromium.org/issues/517406035

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