PT-2026-31426 · Loris · Loris

Published 2026-04-08 · Updated 2026-04-09 · CVE-2026-35165

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions LORIS versions 21.0.0 through 27.0.2 and 28.0.0

Description LORIS is a self-hosted web application for neuroimaging research data and project management. A flaw exists where the backend endpoint did not properly verify file access permissions while the frontend was restricting access. This could allow a user to download files they are not authorized to access if they know or can determine the filename.

Recommendations Update to version 27.0.3 or 28.0.1

Fix

IDOR

Weakness Enumeration

CWE-639

Related Identifiers

CVE-2026-35165

Affected Products

Loris

References · 4

• https://github.com/aces/Loris/security/advisories/GHSA-qp6x-qfx7-54wp · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-35165 · Security Note
• https://twitter.com/CVEnew/status/2041975591050633555 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2042036944238977313 · Twitter Post