CVE-2026-47193: Opf Openproject

High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days.

OpenProject is open-source, web-based project management software. Prior to 17.3.3 and 17.4.1, the journal diff endpoint discloses hidden historical field values without enforcing object and field visibility. This vulnerability is fixed in 17.3.3 and 17.4.1.

Affected products

• Opf Openproject: before 17.3.3 (fixed in 17.3.3); from 17.4.0, before 17.4.1 (fixed in 17.4.1)

Published 2026-06-26. Last modified 2026-06-26.