---
id: 3728
title: "[CVE-2025-15581] Orthanc 1.12.9 User Impersonation"
cve: CVE-2025-15581
source_domain: projectblack.io
source_url: "https://projectblack.io/blog/orthanc-1-12-9-user-impersonation/"
published_at: "2025-12-09 00:53"
tags: ["appsec", "vulnerability-research", "vulnerability", "healthcare", "impersonation", "orthanc", "dicom", "cve-2025-15581"]
phying_url: "https://phying.com/item/3728"
lang: en
---

# [CVE-2025-15581] Orthanc 1.12.9 User Impersonation

## Summary

User impersonation in Orthanc DICOM server (CVE-2025-15581): its auth filter takes everything before the first colon as the username, so a crafted username impersonates others. Fixed in 1.12.10.

## Intelligence Metadata

- **Sources:** projectblack.io
- **CVE:** CVE-2025-15581
- **Published:** 2025-12-09 00:53
- **Original:** https://projectblack.io/blog/orthanc-1-12-9-user-impersonation/
- **Phying News:** https://phying.com/item/3728