CVE-2025-15581

Name	CVE-2025-15581
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.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
orthanc (PTS)	bullseye (security), bullseye	1.9.2+really1.9.1+dfsg-1+deb11u1	vulnerable
	bookworm, bookworm (security)	1.10.1+dfsg-2+deb12u1	vulnerable
	trixie	1.12.7+dfsg-4	vulnerable
	forky, sid	1.12.10+dfsg-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
orthanc	source	(unstable)	1.12.10+dfsg-1

https://projectblack.io/blog/orthanc-1-12-9-user-impersonation/#exploitation
https://orthanc.uclouvain.be/bugs/show_bug.cgi?id=252