Description
Insufficient policy enforcement in ControlledFrame in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to bypass same origin policy via a crafted HTML page. (Chromium security severity: Medium)
Published: 2026-07-30
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

Insufficient policy enforcement in Chrome's ControlledFrame component allows a remote attacker to bypass the same-origin policy. By delivering a crafted HTML page, an adversary can load cross‑origin content or scripts into the ControlledFrame, enabling unauthorized access to data or execution of malicious code within the frame context. This flaw represents a policy enforcement weakness (CWE-346).

Affected Systems

Google Chrome on all platforms prior to version 151.0.7922.72 is affected. The Vulnerable component is the ControlledFrame API used by web pages to embed external content; all users running older Chrome versions remain exposed until they upgrade.

Risk and Exploitability

The CVSS score of 6.5 indicates medium severity, while an EPSS score of < 1% signals a low exploitation probability at present. The vulnerability is not listed in CISA KEV. The likely attack vector is remote via the web: a malicious site can host a crafted ControlledFrame that triggers the policy bypass, so exposure requires user interaction with the compromised page.

Generated by OpenCVE AI on August 4, 2026 at 12:13 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade Google Chrome to version 151.0.7922.72 or later, which enforces strict policy checks for ControlledFrames.
  • Enable automatic updates or regularly monitor the Chrome release blog to receive the latest security patches promptly.
  • In environments where updates cannot be applied immediately, block or restrict the use of ControlledFrames by configuring web content to avoid embedding external frames or by employing network filtering tools to prevent access to known malicious sites.

Generated by OpenCVE AI on August 4, 2026 at 12:13 UTC.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
Debian DLA Debian DLA DLA-4710-1 chromium security update
Debian DSA Debian DSA DSA-6408-1 chromium security update
History

Mon, 03 Aug 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}

 ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N'}

Fri, 31 Jul 2026 00:15:00 +0000

Type Values Removed Values Added
Title chromium-browser: chromium-browser: Insufficient policy enforcement in ControlledFrame
Weaknesses CWE-346
References
Metrics threat_severity

None

 cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}

threat_severity

Moderate

Thu, 30 Jul 2026 03:30:00 +0000

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

Thu, 30 Jul 2026 01:00:00 +0000

Type Values Removed Values Added
Description Insufficient policy enforcement in ControlledFrame in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to bypass same origin policy via a crafted HTML page. (Chromium security severity: Medium)
References

Subscriptions

Google Chrome
cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-08-03T16:11:16.144Z

Reserved: 2026-07-27T23:34:35.730Z

Link: CVE-2026-17743

cve-icon Vulnrichment

Updated: 2026-08-03T16:03:00.778Z

cve-icon NVD

Status : Analyzed

Published: 2026-07-30T01:16:37.160

Modified: 2026-08-10T14:14:25.500

Link: CVE-2026-17743

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-07-30T00:19:09Z

Links: CVE-2026-17743 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-08-04T12:15:03Z

Weaknesses