CVE-2025-15581
Orthanc Authorization Logic Flaw
Description
Orthanc versions before 1.12.10 are affected by an authorisation logic flaw in the application's HTTP Basic Authentication implementation. Successful exploitation could result in Privilege Escalation, potentially allowing full administrative access.
INFO
Published Date :
Feb. 18, 2026, 11:16 p.m.
Last Modified :
Feb. 28, 2026, 6:16 p.m.
Remotely Exploit :
Yes !
Source :
ab69c47f-b95e-4bf2-b2d9-4b1fd1b24b4a
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | MEDIUM | ab69c47f-b95e-4bf2-b2d9-4b1fd1b24b4a | ||||
| CVSS 4.0 | MEDIUM | ab69c47f-b95e-4bf2-b2d9-4b1fd1b24b4a |
Solution
- Update Orthanc to version 1.12.10 or later.
- Verify HTTP Basic Authentication is configured securely.
- Review user access controls and permissions.
Public PoC/Exploit Available at Github
CVE-2025-15581 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-15581.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-15581 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-15581
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
# مستودع asrar-mared هذا هو المستودع الرئيسي لمجموعة **المارد الرقمي**، نقطة التحكم المركزية التي تجمع كل المشاريع والميول التقنية تحت راية واحدة. يمثل الأساس الذي تُبنى عليه الفروع الأخرى، ويُدار منه كل شيء من تنظيم الكود إلى إدارة المجتمع. للاطلاع على المستودع: [asrar-mared](https://github.com/asrar-mared)
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Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-15581 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-15581 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Feb. 28, 2026
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2026/02/msg00033.html -
CVE Modified by ab69c47f-b95e-4bf2-b2d9-4b1fd1b24b4a
Feb. 19, 2026
Action Type Old Value New Value Changed Description Orthanc versions before 1.12.10 are affected by an authorisation logic flaw in the application's HTTP Basic Authentication implementation. Successful exploitation could result in allow Privilege Escalation, potentially allowing full administrative access. Orthanc versions before 1.12.10 are affected by an authorisation logic flaw in the application's HTTP Basic Authentication implementation. Successful exploitation could result in Privilege Escalation, potentially allowing full administrative access. -
New CVE Received by ab69c47f-b95e-4bf2-b2d9-4b1fd1b24b4a
Feb. 18, 2026
Action Type Old Value New Value Added Description Orthanc versions before 1.12.10 are affected by an authorisation logic flaw in the application's HTTP Basic Authentication implementation. Successful exploitation could result in allow Privilege Escalation, potentially allowing full administrative access. Added CVSS V4.0 AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-287 Added Reference https://discourse.orthanc-server.org/t/orthanc-1-12-10/6326 Added Reference https://orthanc.uclouvain.be/bugs/show_bug.cgi?id=252 Added Reference https://projectblack.io/blog/orthanc-1-12-9-user-impersonation/#exploitation