CVE-2026-86751: Snipeitapp Snipe-It

Critical severity, CVSS 9.6. EPSS: 0.4% chance of exploitation in the next 30 days.

Snipe-IT before 8.7.0 fails to properly sanitize markdown image syntax in note fields, allowing authenticated users to read arbitrary server files and issue server-side HTTP requests. Attackers can submit markdown image syntax in checkout acceptance notes that survive HTML escaping, are expanded by CommonMark parser, and resolved by laravel-mail-auto-embed via file_get_contents or curl, exfiltrating sensitive files like .env containing APP_KEY.

Affected products

• Snipeitapp Snipe-It: before 8.7.0 (fixed in 8.7.0)

Published 2026-09-09. Last modified 2026-09-14.