Is CVE-2026-34392 actively exploited?

CVE-2026-34392 has no public evidence of in-the-wild exploitation as of 2026-04-17.

What is the CVSS score for CVE-2026-34392?

CVE-2026-34392 has a CVSS score of 7.5 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

How do I patch CVE-2026-34392?

Patch guidance is available from mcgill security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-34392.

Which products are affected by CVE-2026-34392?

2 products: mcgill loris, mcgill loris.

Fix CVE-2026-34392 - HIGH mcgill loris

Description

LORIS (Longitudinal Online Research and Imaging System) is a self-hosted web application that provides data- and project-management for neuroimaging research. From 20.0.0 to before 27.0.3 and 28.0.1, a bug in the static file router can allow an attacker to traverse outside of the intended directory, allowing unintended files to be downloaded through the static, css, and js endpoints. This vulnerability is fixed in 27.0.3 and 28.0.1.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: none
Availability: none
Weaknesses: CWE-552

Metadata

Primary Vendor: MCGILL
Published: 4/8/2026
Last Modified: 4/17/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

mcgill : lorismcgill : loris

Remediation Guidance

Executive Summary

Cite this page

CVE-2026-34392. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2026-34392

View on NIST NVD

CVE-2026-34392 vulnerability