CVE-2026-113152

Confused Deputy in Chrome SignIn via Malicious Extension

Published Oct 20, 2026 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Description
Confused deputy in SignIn in Google Chrome prior to 156.0.8078.47 allowed a remote attacker leveraging social engineering to bypass web origin policy via a crafted Chrome extension. (Chromium security severity: Low)

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-4853-1 chromium security update
Debian DSA Debian DSA DSA-6577-1 chromium security update
History
Type Values Removed Values Added
Title Confused Deputy in Chrome SignIn via Malicious Extension
Type Values Removed Values Added
Title Memory Corruption in Chrome SignIn Enables Remote Code Execution
Type Values Removed Values Added
Weaknesses CWE-119
Type Values Removed Values Added
Description Memory corruption in SignIn in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Low) Confused deputy in SignIn in Google Chrome prior to 156.0.8078.47 allowed a remote attacker leveraging social engineering to bypass web origin policy via a crafted Chrome extension. (Chromium security severity: Low)
Weaknesses CWE-441
Type Values Removed Values Added
CPEs cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
Type Values Removed Values Added
Title Memory Corruption in Chrome SignIn Enables Remote Code Execution
Type Values Removed Values Added
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome
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'}

Type Values Removed Values Added
Description Memory corruption in SignIn in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Low)
Weaknesses CWE-119
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
Chrome
Published
Updated
Nov 3, 2026, 9:21 PM
Reserved
Oct 19, 2026, 11:03 PM
Status
Modified
Published
Oct 20, 2026, 10:19 PM
Modified
Nov 3, 2026, 10:18 PM