CVE-2026-87553
Improper input validation in SiteIsolation in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Medium)
Scoring
- Severity
- HIGH
- CVSS base score
- 8.3
- CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
- EPSS probability
- 0.30%
- CWE
- CWE-20
- Published
- 2026-09-09
- Last modified
- 2026-09-10
Affected products
- Google Chrome
Weakness type
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