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CVE-2026-35165— LORIS has incorrect access checks in document_repository

Quick assessment

Affected
aces Loris
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

LORIS Neuroimaging Platform是ACElab开源的一个神经影像平台。 LORIS Neuroimaging Platform 21.0.0至27.0.3之前版本和28.0.1之前版本存在安全漏洞，该漏洞源于后端端点未正确验证访问权限，可能导致用户下载无权访问的文件。

CVSS 6.3 · Medium EPSS 0.27% · P18

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2026-35165

Vulnerability Information
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Vulnerability Title
LORIS has incorrect access checks in document_repository
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
LORIS Neuroimaging Platform 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
LORIS Neuroimaging Platform是ACElab开源的一个神经影像平台。 LORIS Neuroimaging Platform 21.0.0至27.0.3之前版本和28.0.1之前版本存在安全漏洞，该漏洞源于后端端点未正确验证访问权限，可能导致用户下载无权访问的文件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

II. Public POCs for CVE-2026-35165

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III. Intelligence Information for CVE-2026-35165

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Vendor Advisories for CVE-2026-35165 (1)

Same Patch Batch · aces · 2026-04-08 · 8 CVEs total

CVE-2026-35169 8.7 HIGH LORIS has potential cross-site scripting in help_editor module
CVE-2026-35446 7.7 HIGH LORIS has a path traversal in FilesDownloadHandler
CVE-2026-34392 7.5 HIGH LORIS has a path traversal in static router
CVE-2026-33350 7.5 HIGH LORIS has a SQL injection in MRI feedback popup
CVE-2026-35403 6.5 MEDIUM LORIS has potential cross-site scripting in survey_accounts module
CVE-2026-34985 6.3 MEDIUM LORIS has incorrect access checks in media module
CVE-2026-35400 3.5 LOW LORIS incorrectly trusts user input in publication module

IV. Related Vulnerabilities

Same product: Loris
Same vendor: aces
Same weakness: CWE-639

V. Comments for CVE-2026-35165

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