CVE-2024-36858: Homebrew Jan

Critical severity, CVSS 9.8. EPSS: 3% chance of exploitation in the next 30 days.

An arbitrary file upload vulnerability in the /v1/app/writeFileSync interface of Jan v0.4.12 allows attackers to execute arbitrary code via uploading a crafted file.

Affected products

• Homebrew Jan: version 0.4.12 only

Published 2024-06-04. Last modified 2026-06-17.