VULNERABILITY INTELLIGENCE

CVE-2026-9986

CVSS score4.2 MEDIUM
EPSS probability0.22%
CISA KEVNot currently listed
Published2026-05-28
Last modified2026-07-21
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:L

Description

Insufficient validation of untrusted input in OptimizationGuide in Google Chrome prior to 148.0.7778.216 allowed a remote attacker who had compromised the renderer process to perform UI spoofing via a crafted HTML page. (Chromium security severity: High)

Weakness classification

  • CWE-20: Improper Input Validation

Primary references