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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| orthanc-server | orthanc | ≤ 1.12.9 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | orthanc | 1.12.10+dfsg-1 | — |
| Debian 13 | orthanc | No fix yet | — |
| Debian 12 | orthanc | No fix yet | — |
| Debian 11 | orthanc | 1.9.2+really1.9.1+dfsg-1+deb11u2 | DLA-4494-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | orthanc | No fix yet | — |
| Ubuntu 26.04 LTS | orthanc | No fix yet | — |
| Ubuntu 25.10 | orthanc | No fix yet | — |
| Ubuntu 24.04 LTS | orthanc | No fix yet | — |
| Ubuntu 22.04 LTS | orthanc | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | orthanc | No fix yet | — |
| Ubuntu 18.04 LTS | orthanc | No fix yet | — |
| Ubuntu 16.04 LTS | orthanc | No fix yet | — |
Advisories 1
- DLA-4494-1 orthanc - security update Debian Security (DSA / DLA) · Feb 28, 2026