CVE-2026-78903
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...
- Published
- Aug 25, 2026
- Updated
- Sep 17, 2026
- Assigning CNA
- Chrome
- Evidence observed
- Aug 31, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:NLow · next 30 days
- Percentile
- 19.1%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
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)
Sources
1Offensive Research & Exploit Development. Vulnerability research, PoC development, and offensive tooling for financial infrastructure.
Responsible use
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