CVE-2026-16421: Inappropriate implementation in WebAudio
Chromium: CVE-2026-16421 Inappropriate implementation in WebAudio
Other sources
Inappropriate implementation in WebAudio in Google Chrome prior to 150.0.7871.182 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
— MITRE
This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.
— Microsoft
Credit
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 150.0.7871.181 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 150.0.4078.96 - Upgrade
Upgrade
Chromium / Google Chrome (Chromium)to a version that resolves this vulnerability.Fixed in 150.0.7871.182
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What is the severity of CVE-2026-16421?
CVE-2026-16421 has a severity rating of High.
How do I fix CVE-2026-16421?
To fix CVE-2026-16421, update Google Chrome to version 150.0.7871.182 or later.
What type of vulnerability is CVE-2026-16421?
CVE-2026-16421 is an inappropriate implementation vulnerability in the WebAudio component of Google Chrome.
Who is affected by CVE-2026-16421?
Users of Google Chrome versions prior to 150.0.7871.182 are affected by CVE-2026-16421.
What can an attacker do with CVE-2026-16421?
An attacker can execute arbitrary code inside a sandbox through a crafted HTML page.