CVE-2026-2623: Wangyunf Blossom

High severity, CVSS 8.8. EPSS: 0.8% chance of exploitation in the next 30 days.

A flaw has been found in Blossom up to 1.17.1. This issue affects the function put of the file blossom-backend/common/common-iaas/src/main/java/com/blossom/common/iaas/blos/BLOSManager.java of the component File Upload. This manipulation causes path traversal. The attack may be initiated remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

• Wangyunf Blossom: up to and including 1.17.1

Published 2026-02-17. Last modified 2026-06-17.