Confused deputy in WebUI in Google Chrome prior to 157.0.8103.38 allowed a remote attacker leveraging social engineering to bypass web origin policy via a crafted HTML page. (Chromium security severity: Low)

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00186.

Exploitation none

Automatable no

Technical Impact total

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Google Chrome affected
Version Status Constraints
157.0.8103.38 affected < 157.0.8103.38

No data.

No data.

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://chromereleases.googleblog.com/2026/11/stable-channel-update-for-desktop.html cve-icon cve-icon
https://issues.chromium.org/issues/563340726 cve-icon cve-icon
History

Wed, 04 Nov 2026 21:30:00 +0000

Type Values Removed Values Added
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'}

ssvc

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

Tue, 03 Nov 2026 23:30:00 +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 Confused Deputy in Chrome WebUI Allows Origin Policy Bypass via Crafted Page

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

Type Values Removed Values Added
Description Confused deputy in WebUI in Google Chrome prior to 157.0.8103.38 allowed a remote attacker leveraging social engineering to bypass web origin policy via a crafted HTML page. (Chromium security severity: Low)
Weaknesses CWE-441
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-11-04T20:21:06.220Z

Reserved: 2026-11-03T10:26:54.239Z

Link: CVE-2026-121198

cve-icon Vulnrichment

Updated: 2026-11-04T20:13:51.831Z

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-11-03T21:17:28.610

Modified: 2026-11-04T21:18:03.450

Link: CVE-2026-121198

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-04T22:45:15Z

Weaknesses