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

Impact

Missing authorization in Chrome’s frame handling allows a remote attacker to bypass system access restrictions and reach a privileged page via a specially crafted HTML page. The flaw, classified as CWE-862, enables a remote attacker to gain access to a privileged page.

Affected Systems

Google Chrome browsers released before version 156.0.8078.47 on the stable channel are affected. The issue exists in all desktop builds of that channel prior to the stated update. Users of older or unreleased channel builds should verify whether the fix has been applied.

Risk and Exploitability

The CVSS score of 8.8 indicates high severity, while the EPSS score is < 1%, indicating a low exploitation probability. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog. The flaw is exploitable via a crafted HTML page, allowing a remote attacker to bypass system access restrictions into a privileged page.

Generated by OpenCVE AI on November 4, 2026 at 07:35 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply the latest Chrome update (156.0.8078.47 or newer) to eliminate the missing authorization bug.
  • If an update cannot be applied immediately, configure an enterprise policy or content security policy to block or disable the loading of external frames from untrusted sources.
  • Monitor browser console and network logs for anomalous frame loading activity and report suspicious behavior to the security team.

Generated by OpenCVE AI on November 4, 2026 at 07:35 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 08:00:00 +0000

Type Values Removed Values Added
Title Missing Authorization in Chrome Frames Allows Privilege Escalation

Wed, 04 Nov 2026 03:15:00 +0000

Type Values Removed Values Added
Title Use-After-Free in Chrome Frames Enables Remote Code Execution

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 Frames 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: Medium) Missing authorization in Frames in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to bypass system access restrictions into a privileged page via a crafted HTML page. (Chromium security severity: Medium)
Weaknesses CWE-862

Thu, 22 Oct 2026 14:45:00 +0000

Type Values Removed Values Added
Title Use-After-Free in Chrome Frames Enables Remote Code Execution

Wed, 21 Oct 2026 17:15:00 +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
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 Frames 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: Medium)
Weaknesses CWE-416
References

Subscriptions

Google Chrome
cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-11-03T21:20:57.633Z

Reserved: 2026-10-19T23:13:38.492Z

Link: CVE-2026-113259

cve-icon Vulnrichment

Updated: 2026-10-20T23:03:04.302Z

cve-icon NVD

Status : Modified

Published: 2026-10-20T22:19:19.567

Modified: 2026-11-03T22:19:00.780

Link: CVE-2026-113259

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-04T07:45:10Z

Weaknesses