CVE-2026-13999: Insufficient validation of untrusted input in Extensions in Google Chrome prior to 150.0.7871.47 allowed an attacker who convinced a user to install a…

PriorityP421medium4.3CVSS 3.1

AVNACLPRNUIRSUCNILAN

EPSS

0.18%

7.3th percentile

Insufficient validation of untrusted input in Extensions in Google Chrome prior to 150.0.7871.47 allowed an attacker who convinced a user to install a malicious extension to perform UI spoofing via a crafted Chrome Extension. (Chromium security severity: Medium)

Affected

3 ranges

Vendor	Product	Version range	Fixed in
google	chrome	< 150.0.7871.47	150.0.7871.47
google	chrome	>= 150.0.7871.47 < 150.0.7871.47	150.0.7871.47
google	chrome_desktop	—	—

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.