Description
Missing authorization in UI in Google Chrome prior to 156.0.8078.47 allowed a remote attacker who had compromised the renderer process to spoof UI elements via a crafted HTML page. (Chromium security severity: Low)
Published: 2026-10-20
Score: 8.8 High
EPSS: < 1% Very Low
KEV: No
Impact: UI Spoofing via Crafted HTML
Action: Patch
AI Analysis

Impact

Missing authorization in the user interface of Google Chrome, for versions before 156.0.8078.47, allows a remote attacker who has already compromised the renderer process to spoof UI elements via a crafted HTML page. This flaw enables attackers to masquerade elements and potentially mislead users, but it does not constitute a direct code execution vulnerability. The vulnerability is rated low severity by Chromium security, and its impact is limited to UI deception.

Affected Systems

All users of Google Chrome versions prior to 156.0.8078.47 are potentially affected. This includes the stable channels on Windows, macOS, Linux, and Android that have not yet received the 156.0.8078.47 update. The patch is available in the 156.0.8078.47 and later releases.

Risk and Exploitability

The flaw carries a CVSS score of 8.8, indicating a serious potential impact. Its EPSS score of < 1% indicates a very low probability of exploitation, and the vulnerability is not listed in the CISA KEV catalog. Nevertheless, the exposed attack surface via a crafted HTML page allows attackers to spoof UI elements from a remote source, requiring the victim to open or load a maliciously constructed page within Chrome. Operators should still prioritize upgrading to the patched version.

Generated by OpenCVE AI on November 4, 2026 at 06:45 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Install the Chrome update 156.0.8078.47 or newer as soon as possible.
  • Use a browser extension that blocks execution of untrusted web content to mitigate attack vectors if an immediate update is not possible.
  • Keep the operating system and security tools up to date to reduce the risk of sandbox escapes.

Generated by OpenCVE AI on November 4, 2026 at 06:45 UTC.

Tracking

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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

Wed, 04 Nov 2026 07:15:00 +0000

Type Values Removed Values Added
Title UI Spoofing via Crafted HTML in Google Chrome Due to Missing Authorization

Wed, 04 Nov 2026 03:30:00 +0000

Type Values Removed Values Added
Title Chrome UI Input Validation Flaw Enabling Remote Code Execution via Crafted HTML

Tue, 03 Nov 2026 22:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-20

Tue, 03 Nov 2026 21:30:00 +0000

Type Values Removed Values Added
Description Improper input validation in UI 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) Missing authorization in UI in Google Chrome prior to 156.0.8078.47 allowed a remote attacker who had compromised the renderer process to spoof UI elements via a crafted HTML page. (Chromium security severity: Low)
Weaknesses CWE-862

Thu, 22 Oct 2026 14:15:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

Thu, 22 Oct 2026 12:30:00 +0000

Type Values Removed Values Added
Title Chrome UI Input Validation Flaw Enabling Remote Code Execution via Crafted HTML

Wed, 21 Oct 2026 09:00:00 +0000

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

Tue, 20 Oct 2026 23:30:00 +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, 20 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
Description Improper input validation in UI 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

Subscriptions

Google Chrome
cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-11-03T21:21:09.591Z

Reserved: 2026-10-19T23:11:26.668Z

Link: CVE-2026-113244

cve-icon Vulnrichment

Updated: 2026-10-20T22:54:39.339Z

cve-icon NVD

Status : Modified

Published: 2026-10-20T22:19:17.920

Modified: 2026-11-03T22:18:58.030

Link: CVE-2026-113244

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-04T07:00:14Z

Weaknesses