Description
Use after free in WebRTC in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)
Published: 2026-10-20
Score: 8.8 High
EPSS: < 1% Very Low
KEV: No
Impact: Remote Code Execution
Action: Immediate Patch
AI Analysis

Impact

This vulnerability is a Use‑After‑Free flaw in the WebRTC component of Google Chrome. A crafted HTML page can trigger the flaw and allow a remote attacker to execute arbitrary code within the Chrome sandbox. The flaw can lead to the execution of malicious code while the browser is running, potentially enabling the attacker to perform malicious actions from the user's session.

Affected Systems

The affected product is Google Chrome on desktop platforms. Versions prior to 156.0.8078.47 are impacted. Users running those versions should upgrade to the latest stable build or a version that includes the fix.

Risk and Exploitability

The CVSS score of 8.8 marks this as a high‑severity vulnerability. The EPSS score is <1%, indicating a very low but non‑zero exploitation probability, but the flaw is publicly documented and the attack vector is via a malicious web page. The vulnerability is not listed in the CISA KEV catalog as of the latest update. Attackers would need to lure a victim to a maliciously crafted webpage; no special privileges are required beyond normal browsing.

Generated by OpenCVE AI on October 22, 2026 at 20:03 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Upgrade Google Chrome to version 156.0.8078.47 or later.
  • If an upgrade is not immediately possible, disable WebRTC by setting the "use-webrtc" flag to false or applying a policy that blocks the WebRTC API.
  • If the upgrade cannot be performed immediately, block WebRTC traffic by configuring firewall rules or using a browser extension that disables the WebRTC API.

Generated by OpenCVE AI on October 22, 2026 at 20:03 UTC.

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

Thu, 22 Oct 2026 15:45:00 +0000

Type Values Removed Values Added
First Time appeared Google
Google chrome
CPEs cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
Vendors & Products Google
Google chrome

Wed, 21 Oct 2026 12:30:00 +0000

Type Values Removed Values Added
Title chromium-browser: chromium-browser: Use after free in WebRTC
Weaknesses CWE-825
References
Metrics threat_severity

None

 threat_severity

Important

Wed, 21 Oct 2026 00:30:00 +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 Use after free in WebRTC in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)
Weaknesses CWE-416
References

Subscriptions

Google Chrome
cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-11-03T21:20:29.008Z

Reserved: 2026-10-19T23:04:43.975Z

Link: CVE-2026-113161

cve-icon Vulnrichment

Updated: 2026-10-20T23:26:15.588Z

cve-icon NVD

Status : Analyzed

Published: 2026-10-20T22:19:08.673

Modified: 2026-10-22T15:25:16.153

Link: CVE-2026-113161

cve-icon Redhat

Severity : Important

Publid Date: 2026-10-20T21:01:55Z

Links: CVE-2026-113161 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-10-23T01:15:13Z

Weaknesses