EUVD-2026-20572

| CVE-2026-35165 MEDIUM
2026-04-08 GitHub_M
6.3
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

Lifecycle Timeline

3
Analysis Generated
Apr 08, 2026 - 19:31 vuln.today
EUVD ID Assigned
Apr 08, 2026 - 19:31 euvd
EUVD-2026-20572
CVE Published
Apr 08, 2026 - 18:23 nvd
MEDIUM 6.3

Tags

Authentication Bypass

Description

LORIS (Longitudinal Online Research and Imaging System) is a self-hosted web application that provides data- and project-management for neuroimaging research. From 21.0.0 to before 27.0.3 and 28.0.1, while the document_repository frontend was restricting file access, the backend endpoint was not correctly verifying access permissions. A user could theoretically download a file that they should not have access to, if they know or can brute force the filename. This vulnerability is fixed in 27.0.3 and 28.0.1.

Analysis

LORIS versions 21.0.0 through 27.0.2 and 28.0.0 suffer from broken access control in the document_repository backend endpoint, allowing authenticated users to bypass frontend restrictions and download files they should not have access to by knowing or brute-forcing filenames. CVSS 6.3 (medium severity) with confirmed patch availability in versions 27.0.3 and 28.0.1. …

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Priority Score

32
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +32
POC: 0

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EUVD-2026-20572 vulnerability details – vuln.today
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