XSS in Apple macOS
CVE-2026-8012
Inappropriate implementation in MHTML in Google Chrome prior to 148.0.7778.96 allowed a remote attacker who had compromised the renderer process to inject arbitrary scripts or HTML (UXSS) via a crafted HTML page. (Chromium security severity: Low)
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.002 (11.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 11.3% 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: 0.002 · change: +0.001
Affected products
- Apple macOS
- Google Chrome — versions 148.0.7778.96
- Linux Kernel
- Microsoft Windows
Weakness classification (CWE)
References
- chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop.html (Release Notes, Vendor Advisory)
- issues.chromium.org/issues/496628298 (Permissions Required)
Frequently asked questions
- What is CVE-2026-8012?
- CVE-2026-8012 is a medium-severity vulnerability in Apple macOS, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-05-06.
- How severe is CVE-2026-8012?
- Medium severity. CVSS v3 base score is 5.4 out of 10.