Description
Inappropriate implementation in Extensions in Google Chrome prior to 149.0.7827.53 allowed an attacker who convinced a user to install a malicious extension to bypass same origin policy via a crafted Chrome Extension. (Chromium security severity: Medium)
Published: 2026-06-04
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-6325-1 chromium security update
History

Mon, 08 Jun 2026 15:15:00 +0000

Type Values Removed Values Added
First Time appeared Apple
Apple macos
Linux
Linux linux Kernel
Microsoft
Microsoft windows
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

Sun, 07 Jun 2026 12:15:00 +0000

Type Values Removed Values Added
Title Chrome Extension Same Origin Policy Bypass via Malicious Extension chromium-browser: Inappropriate implementation in Extensions
Weaknesses CWE-358
References
Metrics threat_severity

None

threat_severity

Moderate


Sat, 06 Jun 2026 01:15:00 +0000

Type Values Removed Values Added
Title Chrome Extension Same Origin Policy Bypass via Malicious Extension

Fri, 05 Jun 2026 23:00:00 +0000

Type Values Removed Values Added
Title Same Origin Policy Bypass via Malicious Chrome Extension (Pre-149.0.7827.53)
Weaknesses CWE-200
CWE-79

Fri, 05 Jun 2026 20:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-346
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'}

ssvc

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


Fri, 05 Jun 2026 04:00:00 +0000

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

Fri, 05 Jun 2026 03:00:00 +0000

Type Values Removed Values Added
Title Same Origin Policy Bypass via Malicious Chrome Extension (Pre-149.0.7827.53)
Weaknesses CWE-200
CWE-79

Thu, 04 Jun 2026 23:15:00 +0000

Type Values Removed Values Added
Description Inappropriate implementation in Extensions in Google Chrome prior to 149.0.7827.53 allowed an attacker who convinced a user to install a malicious extension to bypass same origin policy via a crafted Chrome Extension. (Chromium security severity: Medium)
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-06-05T19:02:51.989Z

Reserved: 2026-06-04T17:06:37.491Z

Link: CVE-2026-11048

cve-icon Vulnrichment

Updated: 2026-06-05T19:02:20.359Z

cve-icon NVD

Status : Analyzed

Published: 2026-06-04T23:17:09.257

Modified: 2026-06-08T15:04:35.063

Link: CVE-2026-11048

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-06-02T00:00:00Z

Links: CVE-2026-11048 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-06-07T15:30:04Z

Weaknesses