CVE-2026-34392

HIGH EPSS 16.2%
Published Apr 8, 20262mo ago · Modified Jun 17, 20261w ago
7.5 CVSS 3.1
High
Find Similar
Published Apr 8, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago

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 Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
16.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-552

Affected Products 2

VendorProductVersionRange
mcgillloris*≥20.0.0  –  <27.0.3
mcgillloris28.0.0any

References 1

  • github.com https://github.com/aces/Loris/security/advisories/GHSA-rfj5-58hv-wc5f
    PatchVendor Advisory

Remediation

  • github.com https://github.com/aces/Loris/security/advisories/GHSA-rfj5-58hv-wc5f
    PatchVendor Advisory