Description
Improper privilege management in Permissions 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: Low)
Published: 2026-10-20
Score: 8.8 High
EPSS: < 1% Very Low
KEV: No
Impact: Privilege escalation within Chrome via crafted HTML
Action: Immediate Patch
AI Analysis

Impact

Improper privilege management in Google Chrome's Permissions module allowed a remote attacker, using social engineering, to bypass sandbox restrictions through a crafted HTML page. The vulnerability could enable the browser to perform privileged actions normally confined within the sandbox, potentially exposing sensitive user data accessed by the browser. The description does not state that code could execute outside the sandbox.

Affected Systems

All installations of Google Chrome earlier than 156.0.8078.47 on any platform that can load arbitrary HTML from the network, inferred from the vulnerability details.

Risk and Exploitability

The CVSS score of 8.8 indicates high severity, while the EPSS score of less than 1% suggests the likelihood of exploitation is very low at present. The vulnerability is not listed in the CISA KEV catalog, with no widespread exploitation reported. Based on the attack description, an attacker would need to deliver the malicious HTML to a victim’s browser, typically using social engineering techniques.

Generated by OpenCVE AI on November 4, 2026 at 11:49 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply the official Chrome update to version 156.0.8078.47 or later to fix the improper privilege management flaw (CWE-269).
  • Disable or restrict site permissions for HTML content that requests privileged API access until the patch is applied, ensuring minimal privilege and mitigating the risk of parameter misuse (CWE-825).
  • Configure Chrome’s sandbox and permission policies to enforce least privilege, limiting the capability of crafted HTML pages to bypass system access restrictions.

Generated by OpenCVE AI on November 4, 2026 at 11:49 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

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 Permissions 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: Low) Improper privilege management in Permissions 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: Low)
Weaknesses CWE-269

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

Type Values Removed Values Added
Title chromium-browser: chromium-browser: arbitrary code execution inside sandbox via crafted HTML page
Weaknesses CWE-825
References
Metrics threat_severity

None

threat_severity

Important


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 Use after free in Permissions 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: Low)
Weaknesses CWE-416
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-11-03T21:21:07.300Z

Reserved: 2026-10-19T23:13:16.090Z

Link: CVE-2026-113256

cve-icon Vulnrichment

Updated: 2026-10-20T22:56:13.663Z

cve-icon NVD

Status : Modified

Published: 2026-10-20T22:19:19.240

Modified: 2026-11-03T22:19:00.217

Link: CVE-2026-113256

cve-icon Redhat

Severity : Important

Publid Date: 2026-10-20T21:02:38Z

Links: CVE-2026-113256 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-11-04T12:00:17Z

Weaknesses
  • CWE-269

    Improper Privilege Management

  • CWE-825

    Expired Pointer Dereference