CVE-2026-78903EPSS p20.1%

CVE-2026-78903CVE-2026-78903

google / chrome

Description

Incomplete cleanup in SiteIsolation in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page. (Chromium security severity: Medium)

Scoring

CVSS 3.1 ()
VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
EPSS0.29% probability of exploitation · percentile 20.1% · 2026-10-05T12:00:23Z
Last modified2026-08-28
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.