Chrome WebMIDI use-after-free <149.0.7827.115 allows sandbox escape
CVE-2026-12011 Published on June 11, 2026

Use after free in WebMIDI in Google Chrome on Windows prior to 149.0.7827.115 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)

NVD

Vulnerability Analysis

CVE-2026-12011 can be exploited with network access, requires user interaction. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.

Attack Vector:
NETWORK
Attack Complexity:
HIGH
Privileges Required:
NONE
User Interaction:
REQUIRED
Scope:
CHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH

Weakness Type

What is a Dangling pointer Vulnerability?

Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.

CVE-2026-12011 has been classified to as a Dangling pointer vulnerability or weakness.


Products Associated with CVE-2026-12011

Want to know whenever a new CVE is published for Google Chrome? stack.watch will email you.

Google Chrome
 

Affected Versions

Google Chrome: