CVE-2026-55147CWE-862broken-access-control

LORIS has incorrect access checks in API for Imaging Browser

Medium · published October 30, 2026

CVSS v3.1
6.3
EPSS
—
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
Not scored
Weakness
CWE-862 · Missing Authorization
Published
2026-10-30T21:29Z
Timeline
  • 30 OCT 21:29Z
    LORIS has incorrect access checks in API for Imaging Browser
    cvelistv5
  • 30 OCT 21:29Z
    LORIS has incorrect access checks in API for Imaging Browser
    cvelistv5