[SECURITY] [DLA 4494-1] orthanc security update
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Debian LTS Advisory DLA-4494-1 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Paride Legovini
February 28, 2026 https://wiki.debian.org/LTS
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Package : orthanc
Version : 1.9.2+really1.9.1+dfsg-1+deb11u2
CVE ID : CVE-2025-15581
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.
For Debian 11 bullseye, this problem has been fixed in version
1.9.2+really1.9.1+dfsg-1+deb11u2.
We recommend that you upgrade your orthanc packages.
For the detailed security status of orthanc please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/orthanc
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
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