Description
Use after free in Core in Google Chrome prior to 155.0.8059.39 allowed a remote attacker to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)
Published: 2026-10-06
Score: 9.6 Critical
EPSS: < 1% Very Low
KEV: No
Impact: Remote Code Execution
Action: Immediate Patch
AI Analysis

Impact

A use‑after‑free flaw in the Core component of Google Chrome allows an attacker who serves a crafted HTML page to execute arbitrary code outside the Chrome sandbox. The flaw directly leads to code execution, giving the attacker full control over the victim’s system, and is classified as high severity by Chromium’s own security team.

Affected Systems

All users of Google Chrome versions earlier than 155.0.8059.39 on desktop are affected, including the stable channel releases available through the Google Chrome update service.

Risk and Exploitability

The vulnerability can be triggered remotely by opening a malicious web page; no local user interaction is required beyond opening the page. With the lack of an EPSS value and absence from CISA’s KEV catalog, the exact exploitation likelihood is not quantified, but the CVSS score of 9.6 and direct remote code‑execution capabilities indicate a substantial risk. Until the user upgrades to Chrome 155.0.8059.39 or newer, the system remains vulnerable.

Generated by OpenCVE AI on October 7, 2026 at 03:35 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Update Chrome to at least version 155.0.8059.39, which fixes the use‑after‑free flaw (CWE‑416), and enable automatic updates on all affected machines.
  • Ensure Chrome's automatic update mechanism is enabled to receive future security patches promptly.
  • Deploy separate sandboxed or virtualized browsing environment or restrict browsing to trusted sites to contain potential exploitation.

Generated by OpenCVE AI on October 7, 2026 at 03:35 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 Chrome Use‑After‑Free Enables Remote Code Execution Outside Sandbox chromium-browser: Use after free in Core
References
Metrics threat_severity

None

 threat_severity

Important

Wed, 07 Oct 2026 19:15:00 +0000

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

Wed, 07 Oct 2026 04:00:00 +0000

Type Values Removed Values Added
Title Chrome Use‑After‑Free Enables Remote Code Execution Outside Sandbox

Wed, 07 Oct 2026 01:45:00 +0000

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

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

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'}

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 Core in Google Chrome prior to 155.0.8059.39 allowed a remote attacker to execute arbitrary code outside 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: 2026-10-07T03:55:32.878Z

Reserved: 2026-10-06T16:32:14.867Z

Link: CVE-2026-106227

cve-icon Vulnrichment

Updated: 2026-10-06T19:26:43.437Z

cve-icon NVD

Status : Analyzed

Published: 2026-10-06T19:17:49.450

Modified: 2026-10-07T19:00:31.653

Link: CVE-2026-106227

cve-icon Redhat

Severity : Important

Publid Date: 2026-10-06T18:41:11Z

Links: CVE-2026-106227 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-10-07T03:45:10Z

Weaknesses