CVE-2026-113294

Chrome Origin Policy Bypass via Loader Authorization Flaw

Published Oct 20, 2026 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Description
Incorrect authorization in Loader in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (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 Chrome Origin Policy Bypass via Loader Authorization Flaw
Type Values Removed Values Added
Title Input Validation Failure in Chrome Loader Leading to Remote Code Execution
Type Values Removed Values Added
Weaknesses CWE-20
Type Values Removed Values Added
Description Improper input validation in Loader 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) Incorrect authorization in Loader in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: Low)
Weaknesses CWE-863
Type Values Removed Values Added
Title Input Validation Failure in Chrome Loader Leading to Remote Code Execution
Type Values Removed Values Added
First Time appeared Google
Google chrome
CPEs cpe:2.3:a: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 Improper input validation in Loader 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-20
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
Chrome
Published
Updated
Nov 3, 2026, 9:21 PM
Reserved
Oct 19, 2026, 11:16 PM
Status
Modified
Published
Oct 20, 2026, 10:19 PM
Modified
Nov 3, 2026, 10:19 PM