CVE-2026-11199: Insufficient validation of untrusted input in WebRTC

Published Apr 20, 2026
·
Updated

Chromium: CVE-2026-11199 Insufficient validation of untrusted input in WebRTC

Other sources

Inappropriate implementation in WebRTC in Google Chrome prior to 149.0.7827.53 allowed an attacker in a privileged network position to leak cross-origin data via malicious network traffic. (Chromium security severity: Medium)

— NVD

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

Google

Affected Software

7 affected componentsFixes available
Google Chrome<149.0.7827.53
149.0.7827.53
All of the following
Google Chrome<149.0.7827.53
Any of the following
Apple macOS
Linux Linux kernel
Microsoft Windows
Microsoft Edge (Chromium-based)
Patch available
Microsoft Edge<149.0.4022.52

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 149.0.7827.53
  2. Upgrade

    Upgrade Chromium / Google Chrome to a version that resolves this vulnerability.

    Fixed in 149.0.7827.53

Event History

Apr 20, 2026
CVE Published
12:00 AM
Data Sourced
12:00 AM
SeverityWeaknessAffected Software
Jun 4, 2026
CVE Published
via MITRE·11:05 PM
Data Sourced
via MITRE·11:05 PM
DescriptionWeakness
Data Sourced
via NVD·11:17 PM
DescriptionSeverityWeaknessAffected Software
Jun 5, 2026
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·02:00 PM
DescriptionAffected Software
Nov 15, 58399
Event
via NVD·01:59 AM

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the severity of CVE-2026-11199?

The severity of CVE-2026-11199 is medium, with a score of 5.9 according to the CVSS 3.1 metrics.

2

How do I fix CVE-2026-11199?

To mitigate CVE-2026-11199, you should update Google Chrome or Microsoft Edge to version 149.0.7827.53 or later.

3

What type of vulnerability is CVE-2026-11199?

CVE-2026-11199 is classified as an input validation vulnerability in WebRTC.

4

What impact does CVE-2026-11199 have on my system?

CVE-2026-11199 may allow an attacker in a privileged network position to leak cross-origin data through malicious network traffic.

5

Which software is affected by CVE-2026-11199?

CVE-2026-11199 affects Google Chrome and Microsoft Edge (Chromium-based and Microsoft versions).

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203