Description
Use after free in WebRTC in Google Chrome prior to 155.0.8059.39 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)
Published: 2026-10-06
Score: 8.8 High
EPSS: < 1% Very Low
KEV: No
Impact: Remote Code Execution
Action: Immediate Patch
AI Analysis

Impact

The vulnerability is a use‑after‑free flaw in the WebRTC component of Google Chrome that allows a remote attacker to trigger arbitrary code execution within the browser sandbox. This flaw carries a CVSS score of 8.8 and is classified as CWE‑416. If exploited, the attacker can run code with the privileges of the sandboxed process, potentially leading to further privilege escalation or data compromise.

Affected Systems

The flaw impacts Google Chrome browsers running versions earlier than 155.0.8059.39 on desktop platforms. All users of the affected Chrome releases are at risk until the patch is applied.

Risk and Exploitability

With a CVSS score of 8.8, the vulnerability is considered high severity. The EPSS score is not available, and the vulnerability is not listed in the CISA KEV catalog. Attackers are likely to exploit this weakness by delivering a specially crafted HTML page to a victim’s Chrome browser, leveraging the remote code execution potential. The lack of a current EPSS value does not negate the possibility of exploitation, especially given the high impact rating.

Generated by OpenCVE AI on October 7, 2026 at 02:51 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Update Google Chrome to version 155.0.8059.39 or later, as distributed through the stable channel.
  • If an immediate update cannot be installed, disable or block WebRTC functionality in Chrome settings to mitigate the attack surface until the patch is applied.
  • Avoid loading untrusted or suspicious web content that could leverage the flaw, and use browser security extensions that warn against or block suspicious HTML behavior.

Generated by OpenCVE AI on October 7, 2026 at 02:51 UTC.

Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-4833-1 chromium security update
Debian DSA Debian DSA DSA-6553-1 chromium security update
History

Sat, 10 Oct 2026 00:30:00 +0000

Type Values Removed Values Added
Title Use‑After‑Free in WebRTC Enables Remote Code Execution Prior to Chrome 155.0.8059.39 chromium-browser: Use after free in WebRTC
References
Metrics threat_severity

None

 threat_severity

Important

Wed, 07 Oct 2026 14:00:00 +0000

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

Wed, 07 Oct 2026 05:30:00 +0000

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

Wed, 07 Oct 2026 03:15:00 +0000

Type Values Removed Values Added
Title Use‑After‑Free in WebRTC Enables Remote Code Execution Prior to Chrome 155.0.8059.39

Tue, 06 Oct 2026 20:30:00 +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, 06 Oct 2026 19:00:00 +0000

Type Values Removed Values Added
Description Use after free in WebRTC in Google Chrome prior to 155.0.8059.39 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: 2026-10-07T03:55:41.820Z

Reserved: 2026-10-06T16:33:59.230Z

Link: CVE-2026-106268

cve-icon Vulnrichment

Updated: 2026-10-06T19:41:20.198Z

cve-icon NVD

Status : Analyzed

Published: 2026-10-06T19:17:54.330

Modified: 2026-10-07T13:53:03.753

Link: CVE-2026-106268

cve-icon Redhat

Severity : Important

Publid Date: 2026-10-06T18:41:12Z

Links: CVE-2026-106268 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-10-07T05:15:12Z

Weaknesses