CVE-2025-44594: Halo

Critical severity, CVSS 9.1. EPSS: 0.4% chance of exploitation in the next 30 days.

halo v2.20.17 and before is vulnerable to server-side request forgery (SSRF) in /apis/uc.api.storage.halo.run/v1alpha1/attachments/-/upload-from-url.

Affected products

• Halo Halo: up to and including 2.20.17

Published 2025-09-09. Last modified 2026-06-17.