Insufficient policy enforcement in Extensions in Google Chrome prior to 150.0.7871.47 allowed an attacker who convinced a user to install a malicious extension to leak cross-origin data via a crafted Chrome Extension. (Chromium security severity: Medium)

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00148.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Google Chrome affected
Version Status Constraints
150.0.7871.47 affected < 150.0.7871.47

No data.

No data.

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Vendors Products
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Project Subscriptions

Vendors Products
Google Subscribe
Chrome Subscribe
Advisories
Source ID Title
Debian DLA Debian DLA DLA-4672-1 chromium security update
Debian DSA Debian DSA DSA-6378-1 chromium security update
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0175352312.html cve-icon
https://issues.chromium.org/issues/514503077 cve-icon
History

Mon, 27 Jul 2026 03:00:00 +0000

Type Values Removed Values Added
Title Insufficient Policy Enforcement in Chrome Extensions Enables Cross‑Origin Data Leakage

Wed, 22 Jul 2026 15:30:00 +0000

Type Values Removed Values Added
Title Cross‑Origin Data Leakage via Malicious Chrome Extension

Fri, 17 Jul 2026 02:45:00 +0000

Type Values Removed Values Added
Title Cross‑Origin Data Leakage via Malicious Chrome Extension

Tue, 14 Jul 2026 11:45:00 +0000

Type Values Removed Values Added
Title Chrome Extension Policy Enforcement Flaw Leading to Cross‑Origin Data Leakage

Mon, 13 Jul 2026 05:15:00 +0000

Type Values Removed Values Added
Title Chrome Extension Policy Enforcement Flaw Leading to Cross‑Origin Data Leakage

Sat, 11 Jul 2026 02:45:00 +0000

Type Values Removed Values Added
Title Insufficient Extension Policy Enables Cross‑Origin Data Leakage in Chrome

Fri, 10 Jul 2026 04:15:00 +0000

Type Values Removed Values Added
Title Insufficient Extension Policy Enables Cross‑Origin Data Leakage in Chrome

Thu, 09 Jul 2026 03:00:00 +0000

Type Values Removed Values Added
Title Chrome Extension Policy Enforcement Weakness

Wed, 08 Jul 2026 03:30:00 +0000

Type Values Removed Values Added
Title Chrome Extension Policy Enforcement Weakness

Mon, 06 Jul 2026 20:45:00 +0000

Type Values Removed Values Added
Title Insufficient Policy Enforcement in Chrome Extensions Enables Cross‑Origin Data Leakage

Mon, 06 Jul 2026 03:45:00 +0000

Type Values Removed Values Added
Title Insufficient Policy Enforcement in Chrome Extensions Enables Cross‑Origin Data Leakage

Sun, 05 Jul 2026 15:00:00 +0000

Type Values Removed Values Added
Title Chrome Extension Policy Enforcement Allows Cross‑Origin Data Leakage

Sat, 04 Jul 2026 23:15:00 +0000

Type Values Removed Values Added
Title Chrome Extension Policy Enforcement Allows Cross‑Origin Data Leakage

Sat, 04 Jul 2026 07:45:00 +0000

Type Values Removed Values Added
Title Chrome Extension Policy Flaw Allows Cross‑Origin Data Leakage

Fri, 03 Jul 2026 12:30:00 +0000

Type Values Removed Values Added
Title Chrome Extension Policy Flaw Allows Cross‑Origin Data Leakage

Fri, 03 Jul 2026 02:30:00 +0000

Type Values Removed Values Added
Title Chrome Extension Policy Bypass Enables Cross‑Origin Data Leakage

Thu, 02 Jul 2026 17:15:00 +0000

Type Values Removed Values Added
Title Chrome Extension Policy Bypass Enables Cross‑Origin Data Leakage

Thu, 02 Jul 2026 06:45:00 +0000

Type Values Removed Values Added
Title Insufficient Extension Policy Enforcement Enables Cross-Origin Data Leakage

Thu, 02 Jul 2026 02:15:00 +0000

Type Values Removed Values Added
Title Insufficient Extension Policy Enforcement Enables Cross-Origin Data Leakage

Wed, 01 Jul 2026 18:00:00 +0000

Type Values Removed Values Added
Title Insufficient Extension Policy Enforcement Leading to Cross‑Origin Data Leakage in Google Chrome
Weaknesses CWE-200
CWE-285

Wed, 01 Jul 2026 16:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N'}

ssvc

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

Wed, 01 Jul 2026 10:30:00 +0000

Type Values Removed Values Added
Title Insufficient Extension Policy Enforcement Leading to Cross‑Origin Data Leakage in Google Chrome
Weaknesses CWE-200
CWE-285

Wed, 01 Jul 2026 07:45:00 +0000

Type Values Removed Values Added
Title Insufficient Extension Policy Enforcement Leading to Cross‑Origin Data Leak
Weaknesses CWE-284
CWE-693

Wed, 01 Jul 2026 07:15:00 +0000

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

Wed, 01 Jul 2026 02:45:00 +0000

Type Values Removed Values Added
Title Insufficient Extension Policy Enforcement Leading to Cross‑Origin Data Leak
Weaknesses CWE-284
CWE-693

Tue, 30 Jun 2026 23:15:00 +0000

Type Values Removed Values Added
Description Insufficient policy enforcement in Extensions in Google Chrome prior to 150.0.7871.47 allowed an attacker who convinced a user to install a malicious extension to leak cross-origin data via a crafted Chrome Extension. (Chromium security severity: Medium)
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-07-01T16:05:38.350Z

Reserved: 2026-06-29T23:04:15.545Z

Link: CVE-2026-14003

cve-icon Vulnrichment

Updated: 2026-07-01T14:47:34.014Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-27T02:45:02Z

Weaknesses