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CVE-2026-55147medium6.3

LORIS has incorrect access checks in API for Imaging Browser

Impact

LORIS (Longitudinal Online Research and Imaging System) is a self-hosted web application that provides data- and project-management for neuroimaging research. In versions from 22.0.0 prior to 27.0.4 and from 28.0.0 prior to 28.0.2, the API for the imaging_browser module permits edits to imaging data without checking the frontend permissions that restrict editing in Imaging Browser. An authenticated API caller can therefore modify imaging data without the required edit authorization. Deployments that no longer use the API can disable it to remove access to this endpoint. This issue is fixed…

Source excerpt · GitHub_M

Affected packages

This source has no supported package-version data for matching. You can read the advisory here, but this record alone cannot power a dependency check.

Affected products

Vendor version evidence. Product records are separate from automatic dependency matching.

aces · GitHub_M

Loris

2 ranges
GitHub_M version evidence

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affected

>= 22.0.0, < 27.0.4

>= 28.0.0, < 28.0.2

unaffected

unknown

Other versions: unknown

Original source description

LORIS (Longitudinal Online Research and Imaging System) is a self-hosted web application that provides data- and project-management for neuroimaging research. In versions from 22.0.0 prior to 27.0.4 and from 28.0.0 prior to 28.0.2, the API for the imaging_browser module permits edits to imaging data without checking the frontend permissions that restrict editing in Imaging Browser. An authenticated API caller can therefore modify imaging data without the required edit authorization. Deployments that no longer use the API can disable it to remove access to this endpoint. This issue is fixed in versions 27.0.4 and 28.0.2.

Inside the record

Evidence available

Package identity · not supplied
Version evidence
Remediation guidance · not supplied
Weakness classification
Additional publishers · not supplied

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Original records

CVE-2026-55147

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-862 ↗

CWE-862: Missing Authorization

GitHub_M

Related →
Contributing organizations · 1
GitHub_M

Assigning organization

2026-10-30

What changed

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References

5 sources
github.com/aces/Loris/security/advisories/GHSA-m48r-jv24-jjcx
Security advisoryGitHub_M
github.com/aces/Loris/pull/10531
PatchGitHub_M
github.com/aces/Loris/commit/b13053597530ee33fbced35085d2490bc9ccc03a
PatchGitHub_M
github.com/aces/Loris/releases/tag/v27.0.4
Release notesGitHub_M
github.com/aces/Loris/releases/tag/v28.0.2
Release notesGitHub_M