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6.5

Google Chrome can bypass site isolation with malicious page

CVE-2026-87541 · published 1 month ago
Summary

Versions of Google Chrome before 153.0.8010.36 may let a specially crafted web page escape the browser’s built‑in separation of sites if an attacker already controls part of the browser process. This could allow the attacker to view data from other sites the user visits. Update Chrome to the latest version to close the gap.

What to do
  • Update google chrome to version 153.0.8010.36 or later.
Affected software
Ecosystem VendorProductAffected versions
– google chrome < 153.0.8010.36
Debian:12 debian chromium All versions
Original advisory text
Information leak in Navigation in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page. (Chromium...
Information leak in Navigation in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page. (Chromium security severity: Medium)
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
6.5 Medium
Exploitation
<1% chance of attack within 30 days
Type
CWE-200Information Exposure
Timeline
Published9 Sep 2026
Updated4 Nov 2026
First seen9 Sep 2026
Sources
CVE-2026-87541 · NVD
CVE-2026-87541 · MITRE
DEBIAN-CVE-2026-87541 · OSV
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