Vulnerability record · CVE-2026-39985 · published 9 April 2026
CVE-2026-39985: Mcgill loris open redirect vulnerability
Mcgill · Loris
LORIS (Longitudinal Online Research and Imaging System) is a self-hosted web application that provides data- and project-management for neuroimaging research. Prior to 27.0.3 and 28.0.1, the redirect parameter upon login to LORIS was not validating the value of the redirect as being within LORIS, which could be used to trick users into visiting arbitrary URLs if they are given a link with a third party redirect parameter. This vulnerability is fixed in 27.0.3 and 28.0.1.
Description
LORIS (Longitudinal Online Research and Imaging System) is a self-hosted web application that provides data- and project-management for neuroimaging research. Prior to 27.0.3 and 28.0.1, the redirect parameter upon login to LORIS was not validating the value of the redirect as being within LORIS, which could be used to trick users into visiting arbitrary URLs if they are given a link with a third party redirect parameter. This vulnerability is fixed in 27.0.3 and 28.0.1.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Affected products
1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.
References
| Link | Tags |
|---|---|
| https://github.com/aces/Loris/commit/f57f54b42a076bf53ba86e20d4dbf37f63538f58 | Patch |
| https://github.com/aces/Loris/releases/tag/v27.0.3 | Release Notes |
| https://github.com/aces/Loris/releases/tag/v28.0.1 | Release Notes |
| https://github.com/aces/Loris/security/advisories/GHSA-rch2-f5fw-cg95 | Vendor Advisory |
Track CVE-2026-39985 inside VULONE
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Related vulnerabilities
Same products first, then exploited flaws of the same weakness class.
Source: NIST National Vulnerability Database (record CVE-2026-39985), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.
