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CVE-2026-35165

LORIS has incorrect access checks in document_repository

Medium6.3EPSS 0.17%
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 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.

Scores

CVSS scores of CVE-2026-35165, by who scored it
Scored byCVSSScoreVector
GitHub_MCNA (assigner)3.1Medium6.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
NVDNVD · Analyzed3.1Medium6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS (exploitation in 30 days)
0.17% · top 94% 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: Medium 6.3.

Weakness

Affected products

  • aces · Loris

    • affected >= 21.0.0, < 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 .