What is CVE-2026-11199?

CVE-2026-11199 is a medium-severity vulnerability in Apple Macos, classified under Improper Input Validation. CVSS score: 5.7/10. Published 2026-06-04.

How severe is CVE-2026-11199?

Medium severity. CVSS v3 base score is 5.7 out of 10.

Improper input validation in Apple Macos

CVE-2026-11199

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)

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

CVSS v3 metric

CVSS v3 base score 5.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N.

Affected products

Apple Macos
Google Chrome — versions 149.0.7827.53
Linux Linux_kernel
Microsoft Windows

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

chrome-cve-admin@google.com (Vendor Advisory)
chrome-cve-admin@google.com (Permissions Required)

Frequently asked questions

What is CVE-2026-11199?: CVE-2026-11199 is a medium-severity vulnerability in Apple Macos, classified under Improper Input Validation. CVSS score: 5.7/10. Published 2026-06-04.
How severe is CVE-2026-11199?: Medium severity. CVSS v3 base score is 5.7 out of 10.