CVE-2026-118328

chromium-browser: Improper input validation in WebRTC

Published Oct 27, 2026 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Description
Out of bounds read in WebRTC in Google Chrome prior to 156.0.8078.73 allowed a remote attacker to read memory inside the sandbox 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 WebRTC in Google Chrome prior to 156.0.8078.73 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High) Out of bounds read in WebRTC in Google Chrome prior to 156.0.8078.73 allowed a remote attacker to read memory inside the sandbox via a crafted HTML page. (Chromium security severity: High)
Weaknesses CWE-125
Type Values Removed Values Added
Title chromium-browser: Improper input validation in WebRTC
References
Metrics threat_severity

None

threat_severity

Important

Type Values Removed Values Added
CPEs cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
Type Values Removed Values Added
Title Remote Code Execution via Improper Input Validation in Chrome WebRTC
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
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome
Type Values Removed Values Added
Title Remote Code Execution via Improper Input Validation in Chrome WebRTC
Type Values Removed Values Added
Description Improper input validation in WebRTC in Google Chrome prior to 156.0.8078.73 allowed a remote attacker to potentially execute arbitrary code inside 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, 9:25 PM
Status
Modified
Published
Oct 27, 2026, 11:17 PM
Modified
Nov 3, 2026, 10:19 PM
Severity
Important
Public date
Oct 27, 2026, 11:03 PM