Description
Incorrect authorization in SiteIsolation in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process and leveraged social engineering to bypass site isolation via a crafted file. (Chromium security severity: Medium)
Published: 2026-09-09
Score: 8.8 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Thu, 10 Sep 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 09 Sep 2026 23:15:00 +0000

Type Values Removed Values Added
Title Incorrect Authorisation Allows Site Isolation Bypass in Chrome

Wed, 09 Sep 2026 20:30:00 +0000

Type Values Removed Values Added
First Time appeared Google
Google chrome
CPEs cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
Vendors & Products Google
Google chrome
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}


Wed, 09 Sep 2026 07:30:00 +0000

Type Values Removed Values Added
Title Incorrect Authorisation Allows Site Isolation Bypass in Chrome

Wed, 09 Sep 2026 01:00:00 +0000

Type Values Removed Values Added
Description Incorrect authorization in SiteIsolation in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process and leveraged social engineering to bypass site isolation via a crafted file. (Chromium security severity: Medium)
Weaknesses CWE-863
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-09-10T15:01:54.024Z

Reserved: 2026-09-08T22:41:02.530Z

Link: CVE-2026-87570

cve-icon Vulnrichment

Updated: 2026-09-10T15:01:23.602Z

cve-icon NVD

Status : Modified

Published: 2026-09-09T01:17:14.723

Modified: 2026-09-10T16:18:06.377

Link: CVE-2026-87570

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-10T14:45:18Z

Weaknesses