CVE-2026-106188

chromium-browser: Confused deputy in SignIn

Published Oct 6, 2026 CVSS 3.1 · 9.6 Critical EPSS < 1% KEV · Not listed
Description
Confused deputy in SignIn in Google Chrome on on Android prior to 155.0.8059.39 allowed a remote attacker to bypass system access restrictions into a privileged page via a crafted HTML page. (Chromium security severity: Medium)

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Debian DLA Debian DLA DLA-4833-1 chromium security update
Debian DSA Debian DSA DSA-6553-1 chromium security update
History
Type Values Removed Values Added
Title Chrome SignIn Confused Deputy Allows Privilege Escalation via Crafted Web Page chromium-browser: Confused deputy in SignIn
References
Metrics threat_severity

None

threat_severity

Moderate

Type Values Removed Values Added
Title Chrome SignIn Confused Deputy Allows Privilege Escalation via Crafted Web Page
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N'}

ssvc

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

cvssV3_1

{'score': 9.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H'}

Type Values Removed Values Added
Title Confused Deputy Enables Bypass to Privileged Page in Chrome Android
Type Values Removed Values Added
First Time appeared Google android
CPEs cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
cpe:2.3:o:google:android:-:*:*:*:*:*:*:*
Vendors & Products Google android
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N'}

Type Values Removed Values Added
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome
Type Values Removed Values Added
Title Confused Deputy Enables Bypass to Privileged Page in Chrome Android
Type Values Removed Values Added
Description Confused deputy in SignIn in Google Chrome on on Android prior to 155.0.8059.39 allowed a remote attacker to bypass system access restrictions into a privileged page via a crafted HTML page. (Chromium security severity: Medium)
Weaknesses CWE-441
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
Chrome
Published
Updated
Oct 8, 2026, 3:39 PM
Reserved
Oct 6, 2026, 4:30 PM
Status
Modified
Published
Oct 6, 2026, 7:17 PM
Modified
Oct 8, 2026, 4:17 PM
Severity
Moderate
Public date
Oct 6, 2026, 6:41 PM