Description
Missing authorization in FileSystem in Google Chrome prior to 156.0.8078.47 allowed a remote attacker leveraging social engineering to bypass system access restrictions via a crafted HTML page. (Chromium security severity: High)
Published: 2026-10-20
Score: 8.8 High
EPSS: < 1% Very Low
KEV: No
Impact: Unauthorized Access
Action: Immediate Patch
AI Analysis

Impact

Missing authorization in FileSystem in Google Chrome prior to 156.0.8078.47 allowed a remote attacker leveraging social engineering to bypass system access restrictions via a crafted HTML page. This flaw is categorized as CWE-862, does not involve memory corruption, and provides unauthorized access within the browser context. The Chromium security severity is registered as High.

Affected Systems

The vulnerability affects all installations of Google Chrome on desktop platforms running a stable channel version earlier than 156.0.8078.47. Users on these versions are exposed to the flaw until a patch is applied or the affected functionality is disabled.

Risk and Exploitability

The vulnerability carries a CVSS score of 8.8, indicating high severity, while the EPSS score is less than 1%. The attack vector is remote, requiring delivery of a malicious HTML page to the target’s browser. Though the exploitation is confined to the Chrome sandbox, it still poses a significant risk by granting unauthorized access within the Chrome sandbox. The vulnerability is not listed in the CISA KEV catalog.

Generated by OpenCVE AI on November 4, 2026 at 13:26 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Upgrade Google Chrome to any version equal to or higher than 156.0.8078.47, which includes the critical security fix.
  • Verify that the default sandboxing mechanisms remain enabled, as the patch is designed to work within the sandboxed execution context.
  • If an upgrade is temporarily infeasible, consider disabling the Chrome FileSystem API through enterprise policy or configuration to remove the attack surface until a patch is applied.

Generated by OpenCVE AI on November 4, 2026 at 13:26 UTC.

Tracking

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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 13:45:00 +0000

Type Values Removed Values Added
Title Missing Authorization in Chrome FileSystem Enabling Remote Access via Crafted HTML Page

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

Type Values Removed Values Added
Weaknesses CWE-416

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

Type Values Removed Values Added
Description Use after free 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: High) Missing authorization in FileSystem in Google Chrome prior to 156.0.8078.47 allowed a remote attacker leveraging social engineering to bypass system access restrictions via a crafted HTML page. (Chromium security severity: High)
Weaknesses CWE-862

Wed, 21 Oct 2026 17:45:00 +0000

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

Wed, 21 Oct 2026 07:30:00 +0000

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

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 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: High)
Weaknesses CWE-416
References

Subscriptions

Google Chrome
cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-11-03T21:20:20.654Z

Reserved: 2026-10-19T22:57:52.733Z

Link: CVE-2026-113097

cve-icon Vulnrichment

Updated: 2026-10-20T23:33:07.870Z

cve-icon NVD

Status : Modified

Published: 2026-10-20T22:19:01.483

Modified: 2026-11-03T22:18:30.880

Link: CVE-2026-113097

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-04T13:30:16Z

Weaknesses