CVE-2026-55146

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.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/aces/Loris/commit/1856d1b4d48d4412d5a5a845024adb70858ec20d
https://github.com/aces/Loris/pull/10531
https://github.com/aces/Loris/releases/tag/v27.0.4
https://github.com/aces/Loris/releases/tag/v28.0.2
https://github.com/aces/Loris/security/advisories/GHSA-c9q6-5f24-p7mj

Configurations

No configuration.

History

30 Oct 2026, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-30 22:16

Updated : 2026-10-30 22:16

NVD link : CVE-2026-55146

Mitre link : CVE-2026-55146

CVE.ORG link : CVE-2026-55146

JSON object : View

Products Affected

No product.

CWE

CWE-862

Missing Authorization

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