Description
Missing authorization in DevTools in Google Chrome prior to 157.0.8103.38 allowed a remote attacker leveraging social engineering to bypass site isolation via a crafted Chrome extension. (Chromium security severity: Low)
Published: 2026-11-03
Score: 4.3 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

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History

Thu, 05 Nov 2026 00:30:00 +0000

Type Values Removed Values Added
Title Missing Authorization in Chrome DevTools Enables Extension‑Based Site‑Isolation Bypass chromium-browser: Missing authorization in DevTools
References
Metrics threat_severity

None

cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L'}

threat_severity

Low


Wed, 04 Nov 2026 00:00:00 +0000

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

Tue, 03 Nov 2026 23:00:00 +0000

Type Values Removed Values Added
Title Missing Authorization in Chrome DevTools Enables Extension‑Based Site‑Isolation Bypass

Tue, 03 Nov 2026 20:45:00 +0000

Type Values Removed Values Added
Description Missing authorization in DevTools in Google Chrome prior to 157.0.8103.38 allowed a remote attacker leveraging social engineering to bypass site isolation via a crafted Chrome extension. (Chromium security severity: Low)
Weaknesses CWE-862
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-11-03T20:42:57.273Z

Reserved: 2026-11-03T10:35:00.816Z

Link: CVE-2026-121253

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-11-03T21:17:36.060

Modified: 2026-11-03T21:17:36.157

Link: CVE-2026-121253

cve-icon Redhat

Severity : Low

Publid Date: 2026-11-03T20:42:57Z

Links: CVE-2026-121253 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-11-05T02:15:15Z

Weaknesses