CVE-2026-118309

chromium-browser: Improper input validation in UI

Published Oct 27, 2026 CVSS 3.1 · 9.6 Critical EPSS < 1% KEV · Not listed
Description
Incorrect reference resolution in UI in Google Chrome on on Android prior to 156.0.8078.73 allowed a remote attacker leveraging social engineering to obtain sensitive information via a crafted HTML page. (Chromium security severity: High)

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4878-1 chromium security update
History
Type Values Removed Values Added
Description Improper input validation in UI in Google Chrome on on Android prior to 156.0.8078.73 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High) Incorrect reference resolution in UI in Google Chrome on on Android prior to 156.0.8078.73 allowed a remote attacker leveraging social engineering to obtain sensitive information via a crafted HTML page. (Chromium security severity: High)
Weaknesses CWE-706
Type Values Removed Values Added
Title chromium-browser: Improper input validation in UI
References
Metrics threat_severity

None

threat_severity

Important

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
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
Title Google Chrome Android UI Improper Input Validation Leading to Remote Code Execution
Type Values Removed Values Added
Metrics 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
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome
Type Values Removed Values Added
Title Google Chrome Android UI Improper Input Validation Leading to Remote Code Execution
Type Values Removed Values Added
Description Improper input validation in UI in Google Chrome on on Android prior to 156.0.8078.73 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)
Weaknesses CWE-20
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
Chrome
Published
Updated
Nov 3, 2026, 9:18 PM
Reserved
Oct 27, 2026, 9:20 PM
Status
Modified
Published
Oct 27, 2026, 11:16 PM
Modified
Nov 3, 2026, 10:19 PM
Severity
Important
Public date
Oct 27, 2026, 11:03 PM