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CVE-2026-55146medium4.3

LORIS has incorrect access checks in issue_tracker

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 16.0.0 prior to 27.0.4 and from 28.0.0 prior to 28.0.2, the issue_tracker backend does not correctly verify edit access permissions, although the frontend restricts which issues a user may edit. An authenticated user can submit backend changes to issues outside the user's permitted edit scope. Deployments that no longer use Issue Tracker can disable the module to remove access to the endpoint. This issue is fixed in…

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

Compare with this publisher’s ranges. This does not inspect your installation.

affected

>= 16.0.0, < 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 16.0.0 prior to 27.0.4 and from 28.0.0 prior to 28.0.2, the issue_tracker backend does not correctly verify edit access permissions, although the frontend restricts which issues a user may edit. An authenticated user can submit backend changes to issues outside the user's permitted edit scope. Deployments that no longer use Issue Tracker can disable the module to remove access to the 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

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-55146

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-c9q6-5f24-p7mj
Security advisoryGitHub_M
github.com/aces/Loris/pull/10531
PatchGitHub_M
github.com/aces/Loris/commit/1856d1b4d48d4412d5a5a845024adb70858ec20d
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