Skip to content
OpenAdvisories
High · 7.7 CVE-2026-35446 EUVD-2026-20580

LORIS has a path traversal in FilesDownloadHandler

Published Apr 8, 2026 · Updated Apr 8, 2026 · Assigned by GitHub_M

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.

Affected products

VendorProductAffectedFixed
aces Loris >= 24.0.0, < 27.0.3, >= 28.0.0, < 28.0.1 —

References