What is CVE-2026-11241?

CVE-2026-11241 is a high-severity vulnerability in Apple macOS, classified under Improper Input Validation. CVSS score: 8.0/10. Published 2026-06-05.

How severe is CVE-2026-11241?

High severity. CVSS v3 base score is 8.0 out of 10.

Improper input validation in Apple macOS

CVE-2026-11241

Insufficient validation of untrusted input in Cast in Google Chrome prior to 149.0.7827.53 allowed an attacker on the local network segment to perform privilege escalation via a crafted HTML page. (Chromium security severity: Low)

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

Published 2026-06-05 · last modified 2026-07-23.

CVSS v3 metric

CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.001 (1.3th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 1.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop.html (Vendor Advisory)
issues.chromium.org/issues/497203741 (Permissions Required)

Frequently asked questions

What is CVE-2026-11241?: CVE-2026-11241 is a high-severity vulnerability in Apple macOS, classified under Improper Input Validation. CVSS score: 8.0/10. Published 2026-06-05.
How severe is CVE-2026-11241?: High severity. CVSS v3 base score is 8.0 out of 10.