Description
Insufficient policy enforcement in Canvas in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)
Published: 2026-06-30
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

A flaw in the Canvas rendering subsystem of Google Chrome before version 150.0.7871.47 allows a remote attacker to bypass the browser’s same‑origin policy by using a malicious web page that reads pixel data from a different origin, resulting in the exposure of sensitive data. The issue is related to CWE‑346 (insufficient policy enforcement), reflecting risks of leaking protected data through misconfigured access controls.

Affected Systems

All desktop installations of Google Chrome running any version earlier than 150.0.7871.47 are affected; the issue has been fixed in that revision.

Risk and Exploitability

The CVSS score is 6.5, indicating moderate severity. The EPSS score is below 1 %, suggesting a very low likelihood of exploitation currently. The vulnerability is not listed in the CISA KEV catalog. An attacker would need to convince a user to load a specially crafted web page, either locally or remotely; no widespread exploitation has been reported.

Generated by OpenCVE AI on July 16, 2026 at 12:34 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade Chrome to version 150.0.7871.47 or later
  • Enable automatic updates to ensure all users receive the latest Chrome release
  • Enforce an organization‑wide policy that blocks installation or use of older, vulnerable Chrome versions

Generated by OpenCVE AI on July 16, 2026 at 12:34 UTC.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
Debian DLA Debian DLA DLA-4672-1 chromium security update
Debian DSA Debian DSA DSA-6378-1 chromium security update
History

Thu, 16 Jul 2026 13:00:00 +0000

Type Values Removed Values Added
Title Cross-Origin Data Leak via Canvas Rendering in Google Chrome

Tue, 14 Jul 2026 12:15:00 +0000

Type Values Removed Values Added
Title Cross‑Origin Data Leak via Canvas Rendering in Google Chrome

Mon, 13 Jul 2026 06:00:00 +0000

Type Values Removed Values Added
Title Cross‑Origin Data Leak via Canvas Rendering in Google Chrome

Sun, 12 Jul 2026 11:15:00 +0000

Type Values Removed Values Added
Title Insufficient Policy Enforcement in Chrome Canvas Leading to Cross‑Origin Data Leak

Sat, 11 Jul 2026 03:00:00 +0000

Type Values Removed Values Added
Title Insufficient Policy Enforcement in Chrome Canvas Leading to Cross‑Origin Data Leak

Thu, 09 Jul 2026 15:30:00 +0000

Type Values Removed Values Added
Title Insufficient Canvas Policy Allows Remote Cross‑Origin Data Leak

Wed, 08 Jul 2026 08:45:00 +0000

Type Values Removed Values Added
Title Insufficient Canvas Policy Allows Remote Cross‑Origin Data Leak

Tue, 07 Jul 2026 10:45:00 +0000

Type Values Removed Values Added
Title Canvas Cross‑Origin Data Leak in Google Chrome

Mon, 06 Jul 2026 12:45:00 +0000

Type Values Removed Values Added
Title Canvas Cross‑Origin Data Leak in Google Chrome

Sun, 05 Jul 2026 20:00:00 +0000

Type Values Removed Values Added
Title Canvas API Cross‑Origin Data Leak in Google Chrome

Sun, 05 Jul 2026 07:30:00 +0000

Type Values Removed Values Added
Title Canvas API Cross‑Origin Data Leak in Google Chrome

Sat, 04 Jul 2026 08:15:00 +0000

Type Values Removed Values Added
Title Canvas Policy Enforcement Leak Allows Cross‑Origin Data Disclosure

Fri, 03 Jul 2026 13:00:00 +0000

Type Values Removed Values Added
Title Canvas Policy Enforcement Leak Allows Cross‑Origin Data Disclosure

Thu, 02 Jul 2026 23:15:00 +0000

Type Values Removed Values Added
Title Cross‑Origin Data Leak via Canvas API in Google Chrome

Thu, 02 Jul 2026 12:00:00 +0000

Type Values Removed Values Added
Title Cross‑Origin Data Leak via Canvas API in Google Chrome

Wed, 01 Jul 2026 22:45:00 +0000

Type Values Removed Values Added
Title Canvas Cross‑Origin Data Leak via Insufficient Policy Enforcement in Google Chrome
Weaknesses CWE-200
CWE-285

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

Type Values Removed Values Added
Weaknesses CWE-346
Metrics cvssV3_1

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

ssvc

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

Wed, 01 Jul 2026 12:45:00 +0000

Type Values Removed Values Added
Title Canvas Cross‑Origin Data Leak via Insufficient Policy Enforcement in Google Chrome
Weaknesses CWE-200
CWE-285

Wed, 01 Jul 2026 08:30:00 +0000

Type Values Removed Values Added
Title Cross‑Origin Data Leak via Canvas in Chrome
First Time appeared Google
Google chrome
Weaknesses CWE-200
Vendors & Products Google
Google chrome

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

Type Values Removed Values Added
Title Cross‑Origin Data Leak via Canvas in Chrome
Weaknesses CWE-200

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

Type Values Removed Values Added
Description Insufficient policy enforcement in Canvas in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)
References

Subscriptions

Google Chrome
cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-07-01T15:19:30.731Z

Reserved: 2026-06-29T23:03:30.772Z

Link: CVE-2026-13840

cve-icon Vulnrichment

Updated: 2026-07-01T15:19:26.592Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-16T12:45:05Z

Weaknesses