CVE-2026-11165

chromium-browser: chromium-browser: Use after free in WebMIDI

View on CVE.org
Published Jun 4, 2026 CVSS 3.1 · 9.6 Critical EPSS < 1% KEV · Not listed
Description
Use after free in WebMIDI in Google Chrome on iOS prior to 149.0.7827.53 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Medium)

Analysis

AI-generated

Technical impact

A use‑after‑free flaw in the WebMIDI implementation of Google Chrome on iOS affects all releases prior to 149.0.7827.53. The vulnerability is triggered by a crafted HTML page delivered over the network and could allow a remote attacker to escape the browser sandbox and execute code with the privileges of the user’s device. The weakness is classified as CWE-416.

Affected Systems

All users running Google Chrome on iOS with versions earlier than 149.0.7827.53 are affected. Only the iOS platform is listed; no other operating systems or browsers were reported.

Risk and Exploitability

The CVE has a CVSS score of 9.6, indicating high severity. The EPSS score is less than 1%, suggesting a low probability of exploitation currently. The vulnerability is not listed in CISA's KEV catalog, and attackers must craft a malicious page that targets the WebMIDI interface; the sandbox escape could then compromise the confidentiality, integrity, and availability of the infected device.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Upgrade Google Chrome to version 149.0.7827.53 or later
  • Avoid visiting untrusted web pages that contain WebMIDI elements
  • If possible, disable the WebMIDI feature via Chrome flags or employ a content filter to block malicious content

Generated by OpenCVE AI on June 5, 2026 at 19:22 UTC.

Tracking

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Advisories

Source ID Title
Debian DSA Debian DSA DSA-6325-1 chromium security update
History
Type Values Removed Values Added
First Time appeared Apple
Apple iphone Os
CPEs cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:-:*:*:*:*:*:*:*
Vendors & Products Apple
Apple iphone Os
Type Values Removed Values Added
Title chromium-browser: chromium-browser: Use after free in WebMIDI
References
Metrics threat_severity

None

 threat_severity

Moderate
Type Values Removed Values Added
Title Use After Free in WebMIDI in Chrome iOS Allowing Potential Sandbox Escape
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 9.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}
Type Values Removed Values Added
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome
Type Values Removed Values Added
Title Use After Free in WebMIDI in Chrome iOS Allowing Potential Sandbox Escape
Type Values Removed Values Added
Description Use after free in WebMIDI in Google Chrome on iOS prior to 149.0.7827.53 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Medium)
Weaknesses CWE-416
References
Earlier changes (2)
Weaknesses

Sources

Status
PUBLISHED
Assigner
Chrome
Published
Updated
Jun 5, 2026, 5:25 PM
Reserved
Jun 4, 2026, 5:10 PM

View source JSON

Updated
Jun 5, 2026, 5:23 PM

JSON

Status
Analyzed
Published
Jun 4, 2026, 11:17 PM
Modified
Jul 23, 2026, 7:10 AM

View source JSON

Severity
Moderate
Public date
Jun 2, 2026, 12:00 AM

View source Bugzilla JSON

Updated
Jun 5, 2026, 7:30 PM

JSON