Description
Side-channel information leakage in Paint in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Low)
Published: 2026-06-04
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

A flaw in the Paint component of Google Chrome prior to version 149.0.7827.53 enables a side‑channel information leak. By serving a maliciously crafted HTML page, a remote attacker can extract data from other origins that the browser processes, violating confidentiality. The weakness is classified as CWE‑1300, CWE‑203, and CWE‑205 and is considered low severity by Chromium security.

Affected Systems

Google Chrome (stable channel) releases before 149.0.7827.53 are affected. Users running these versions on any operating system are vulnerable if they open a crafted HTML page that utilizes the Paint API.

Risk and Exploitability

The EPSS score is < 1% and the vulnerability is not listed in CISA’s KEV catalog, indicating no known widespread exploitation yet. However, because the attack vector is a standard web page, any user who visits a malicious site can be impacted. The CVSS score of 6.5 indicates moderate risk beyond the previously considered low severity by Chromium security, but the knowledge that sensitive data could cross origin boundaries remains significant.

Generated by OpenCVE AI on June 7, 2026 at 15:35 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade Google Chrome to version 149.0.7827.53 or later.
  • Configure Chrome policies to disable or restrict the Paint API for untrusted content, if policy support is available.
  • Apply strict Content‑Security‑Policy headers on your web pages to prevent cross‑origin data exposure.

Generated by OpenCVE AI on June 7, 2026 at 15:35 UTC.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
Debian DSA Debian DSA DSA-6325-1 chromium security update
History

Tue, 09 Jun 2026 14:00:00 +0000

Type Values Removed Values Added
First Time appeared Apple
Apple macos
Linux
Linux linux Kernel
Microsoft
Microsoft windows
CPEs cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
Vendors & Products Apple
Apple macos
Linux
Linux linux Kernel
Microsoft
Microsoft windows

Sun, 07 Jun 2026 12:15:00 +0000

Type Values Removed Values Added
Title chromium-browser: Side-channel information leakage in Paint
Weaknesses CWE-205
References
Metrics threat_severity

None

threat_severity

Low


Fri, 05 Jun 2026 21:15:00 +0000

Type Values Removed Values Added
Title Side-Channel Leak in Chrome Paint Allows Cross-Origin Data Leakage via Crafted Page

Fri, 05 Jun 2026 19:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-203
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'}


Fri, 05 Jun 2026 01:15:00 +0000

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

Fri, 05 Jun 2026 01:00:00 +0000

Type Values Removed Values Added
Title Side-Channel Leak in Chrome Paint Allows Cross-Origin Data Leakage via Crafted Page

Thu, 04 Jun 2026 23:45:00 +0000

Type Values Removed Values Added
Description Side-channel information leakage in Paint in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Low)
Weaknesses CWE-1300
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-06-05T19:00:49.592Z

Reserved: 2026-06-04T17:11:16.729Z

Link: CVE-2026-11289

cve-icon Vulnrichment

Updated: 2026-06-05T19:00:39.776Z

cve-icon NVD

Status : Analyzed

Published: 2026-06-05T00:17:06.440

Modified: 2026-06-09T13:58:32.577

Link: CVE-2026-11289

cve-icon Redhat

Severity : Low

Publid Date: 2026-06-02T00:00:00Z

Links: CVE-2026-11289 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-06-07T15:45:03Z

Weaknesses
  • CWE-1300

    Improper Protection of Physical Side Channels

  • CWE-203

    Observable Discrepancy

  • CWE-205

    Observable Behavioral Discrepancy