CVE-2026-34985

| EUVD-2026-20570 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-2026-20570
CVE Published
Apr 08, 2026 - 18:22 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 16.1.0 to before 27.0.3 and 28.0.1, While the frontend of the media module filters files that the user should not have access to, the backend was not applying access checks and it would be possible for someone who should not have access to a file to access it if they know the filename. This vulnerability is fixed in 27.0.3 and 28.0.1.

Analysis

LORIS (Longitudinal Online Research and Imaging System) versions 16.1.0 through 27.0.2 and 28.0.0 allow authenticated users to bypass backend access controls in the media module and access files they should not have permission to view, provided they know the filename. The vulnerability stems from missing server-side authorization checks that should prevent unauthorized file access, enabling confidentiality and integrity compromise of sensitive neuroimaging research data. …

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Priority Score

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

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CVE-2026-34985 vulnerability details – vuln.today
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