Description
Use after free in FileSystem in Google Chrome prior to 156.0.8078.47 allowed a remote attacker who had compromised the renderer process and leveraged social engineering to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Low)
Published: 2026-10-20
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 FileSystem component of Google Chrome versions before 156.0.8078.47. By compromising the renderer process, an attacker can craft a malicious HTML page that triggers the flaw and potentially executes arbitrary code outside the sandbox, compromising system integrity.

Affected Systems

Google Chrome desktop browsers prior to version 156.0.8078.47 on all supported operating systems are affected. The flaw does not exist in Chrome 156.0.8078.47 or newer versions.

Risk and Exploitability

The CVSS score of 8.8 indicates high severity, with no publicly known widespread exploitation reported in the CISA KEV catalog and the EPSS score of < 1%. The likely attack vector is a remotely delivered malicious HTML page that exploits the use‑after‑free, potentially allowing the attacker to execute arbitrary code outside the sandbox and elevate privileges on the client machine.

Generated by OpenCVE AI on November 4, 2026 at 06:42 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Update Chrome to version 156.0.8078.47 or newer
  • Restart the browser to ensure the new version is active
  • As a temporary measure, avoid opening untrusted HTML pages that use the FileSystem API or block the API via Chrome policies, if supported

Generated by OpenCVE AI on November 4, 2026 at 06:42 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

Wed, 04 Nov 2026 02:30:00 +0000

Type Values Removed Values Added
Title Remote Code Execution via Memory Corruption in Chrome FileSystem API

Tue, 03 Nov 2026 22:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-119

Tue, 03 Nov 2026 21:30:00 +0000

Type Values Removed Values Added
Description Memory corruption in FileSystem in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Low) Use after free in FileSystem in Google Chrome prior to 156.0.8078.47 allowed a remote attacker who had compromised the renderer process and leveraged social engineering to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Low)
Weaknesses CWE-416

Thu, 22 Oct 2026 12:30:00 +0000

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

Thu, 22 Oct 2026 11:30:00 +0000

Type Values Removed Values Added
Title Remote Code Execution via Memory Corruption in Chrome FileSystem API

Wed, 21 Oct 2026 09:00:00 +0000

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

Tue, 20 Oct 2026 23:30:00 +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 Memory corruption in FileSystem in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Low)
Weaknesses CWE-119
References

Subscriptions

Google Chrome
cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-11-03T21:21:15.533Z

Reserved: 2026-10-19T23:12:06.201Z

Link: CVE-2026-113248

cve-icon Vulnrichment

Updated: 2026-10-20T22:49:35.570Z

cve-icon NVD

Status : Modified

Published: 2026-10-20T22:19:18.360

Modified: 2026-11-03T22:18:58.740

Link: CVE-2026-113248

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-04T06:45:08Z

Weaknesses