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CVE-2026-35446— LORIS has a path traversal in FilesDownloadHandler

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 24.0.0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FilesDownloadHandler中操作顺序错误,可能导致攻击者逃脱预期下载目录。

CVSS 7.7 · High EPSS 0.38% · P30

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2026-35446

Vulnerability Information

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Vulnerability Title
LORIS has a path traversal in FilesDownloadHandler
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 24.0.0 to before 27.0.3 and 28.0.1, an incorrect order of operations in the FilesDownloadHandler could result in an attacker escaping the intended download directories. 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:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对外部实体的文件或目录可访问
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 24.0.0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FilesDownloadHandler中操作顺序错误,可能导致攻击者逃脱预期下载目录。
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-2026-35446

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III. Intelligence Information for CVE-2026-35446

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Vendor Advisories for CVE-2026-35446 (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-2026-34392 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-2026-35165 6.3 MEDIUM LORIS has incorrect access checks in document_repository
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

V. Comments for CVE-2026-35446

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