Description
Insufficient validation of untrusted input in Extensions in Google Chrome prior to 149.0.7827.103 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page. (Chromium security severity: High)
Published: 2026-06-08
Score: 6.5 Medium
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
Source ID Title
Debian DSA Debian DSA DSA-6337-1 chromium security update
History

Thu, 11 Jun 2026 00:15:00 +0000

Type Values Removed Values Added
Title Chrome Extension Input Validation Flaw Enables Site Isolation Bypass chromium-browser: Insufficient validation of untrusted input in Extensions
Weaknesses CWE-1286
References
Metrics threat_severity

None

threat_severity

Important


Wed, 10 Jun 2026 19:45:00 +0000

Type Values Removed Values Added
Title Chrome Extension Input Validation Flaw Enables Site Isolation Bypass

Wed, 10 Jun 2026 18:45:00 +0000

Type Values Removed Values Added
First Time appeared Apple
Apple macos
Linux
Linux linux Kernel
Microsoft
Microsoft windows
Weaknesses NVD-CWE-noinfo
CPEs cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
Vendors & Products Apple
Apple macos
Linux
Linux linux Kernel
Microsoft
Microsoft windows

Tue, 09 Jun 2026 16:15:00 +0000

Type Values Removed Values Added
Title Insufficient Input Validation in Chrome Extensions Enables Site Isolation Bypass

Tue, 09 Jun 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Tue, 09 Jun 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N'}


Tue, 09 Jun 2026 01:45:00 +0000

Type Values Removed Values Added
Title Insufficient Input Validation in Chrome Extensions Enables Site Isolation Bypass

Tue, 09 Jun 2026 01:15:00 +0000

Type Values Removed Values Added
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome

Mon, 08 Jun 2026 23:45:00 +0000

Type Values Removed Values Added
Description Insufficient validation of untrusted input in Extensions in Google Chrome prior to 149.0.7827.103 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page. (Chromium security severity: High)
Weaknesses CWE-20
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-06-09T13:48:10.012Z

Reserved: 2026-06-08T21:33:42.720Z

Link: CVE-2026-11658

cve-icon Vulnrichment

Updated: 2026-06-09T13:47:08.703Z

cve-icon NVD

Status : Analyzed

Published: 2026-06-09T00:16:48.810

Modified: 2026-06-10T18:30:47.863

Link: CVE-2026-11658

cve-icon Redhat

Severity : Important

Publid Date: 2026-06-08T00:00:00Z

Links: CVE-2026-11658 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-06-11T02:15:27Z