Description
LORIS (Longitudinal Online Research and Imaging System) is a self-hosted web application that provides data- and project-management for neuroimaging research. From 24.0.0 to before 27.0.3 and 28.0.1, an incorrect order of operations in the FilesDownloadHandler could result in an attacker escaping the intended download directories. This vulnerability is fixed in 27.0.3 and 28.0.1.
Scores
CVSS v3
7.7
EPSS
0.0004
EPSS Percentile
10.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-552
Status
published
Products (4)
aces/Loris
>= 24.0.0, < 27.0.3
aces/Loris
>= 28.0.0, < 28.0.1
mcgill/loris
28.0.0
mcgill/loris
24.0.0 - 27.0.2
Published
Apr 08, 2026
Tracked Since
Apr 09, 2026