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CVE-2026-35446

LORIS has a path traversal in FilesDownloadHandler

High7.7EPSS 0.24%
Published
Updated
Reserved
Assigned by
GitHub_M

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.

Scores

CVSS scores of CVE-2026-35446, by who scored it
Scored byCVSSScoreVector
GitHub_MCNA (assigner)3.1High7.7CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
NVDNVD · Analyzed3.1High8.6CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
EPSS (exploitation in 30 days)
0.24% · top 86% of all CVEs (6 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.7.

Weakness

Affected products

  • aces · Loris

    • affected >= 24.0.0, < 27.0.3
    • affected >= 28.0.0, < 28.0.1

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .