CVE-2026-39985: LORIS (Longitudinal Online Research and Imaging System) is a self-hosted web application that provides data- and…

CVE-2026-39985 · Severity: medium · CVSS 4.3 · Published 2026-04-09

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.

Technologies: Mcgill Loris. Vendors: Mcgill.

Quick answers

Is CVE-2026-39985 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-39985 being exploited in the wild.
How severe is CVE-2026-39985?
Medium severity, with a CVSS score of 4.3, published 9 April 2026.
Which products and versions are affected?
Mcgill Loris. The advisory does not name versions.
Is there a fix for CVE-2026-39985?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2026-39985?
Check whether you run Mcgill Loris. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Mcgill Loris

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