CVE-2026-35446 HIGH

CVE-2026-35446: LORIS has a path traversal in FilesDownloadHandler

Vendor Aces
Product Loris
Weakness CWE-552 · Files accessible externally
Published April 8, 2026
Last update April 8, 2026
View on NVD All CVEs

CVSS base score

7.7/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 8, 2026 CVE published
April 8, 2026 Record updated