Description
Missing authorization in PDF in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to bypass web origin policy into a privileged page via a crafted Chrome extension. (Chromium security severity: Medium)
Published: 2026-11-03
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
AI Analysis

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Remediation

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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 PDF Engine Allows Web Origin Policy Bypass chromium-browser: Missing authorization in PDF
References
Metrics threat_severity

None

cvssV3_1

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

threat_severity

Moderate


Wed, 04 Nov 2026 01:15:00 +0000

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

Tue, 03 Nov 2026 22:45:00 +0000

Type Values Removed Values Added
Title Missing Authorization in Chrome PDF Engine Allows Web Origin Policy Bypass

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

Type Values Removed Values Added
Description Missing authorization in PDF in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to bypass web origin policy into a privileged page via a crafted Chrome extension. (Chromium security severity: Medium)
Weaknesses CWE-862
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-11-03T20:42:40.140Z

Reserved: 2026-11-03T09:22:56.740Z

Link: CVE-2026-121031

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-11-03T21:17:06.157

Modified: 2026-11-03T21:17:06.263

Link: CVE-2026-121031

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-11-03T20:42:40Z

Links: CVE-2026-121031 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-11-05T02:30:08Z

Weaknesses