CVE-2026-12457

Inappropriate implementation in Extensions in Google Chrome prior to 149.0.7827.155 allowed a remote attacker who had compromised the renderer process to…

Medium · published June 17, 2026

CVSS v3.1
4.2
EPSS
0%
Percentile
2.7
In the wild
Unconfirmed
What it is

Inappropriate implementation in Extensions in Google Chrome prior to 149.0.7827.155 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page. (Chromium security severity: High)

The record
Technical detail
CVSS v3.1
4.2 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00136 · 2.7th percentile
Published
2026-06-17T01:38Z
EPSS history
Timeline
  • 17 JUN 01:38Z
    Inappropriate implementation in Extensions in Google Chrome prior to 149.0.7827.155 allowed a remote attacker who had compromised the renderer process to…
    cvelistv5