Missing Authentication for Critical Function Affecting Orthanc package, versions [0,1.12.10)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-UNMANAGED-ORTHANC-15325649
- published22 Feb 2026
- disclosed19 Feb 2026
- creditNikolai Makaroff
Introduced: 19 Feb 2026
CVE-2025-15581 (opens in a new tab)How to fix?
Upgrade Orthanc to version 1.12.10 or higher.
Overview
Affected versions of this package are vulnerable to Missing Authentication for Critical Function due to a flaw in the HTTP Basic Authentication process. An attacker can gain unauthorized administrative access by bypassing authentication controls.