Dashboard / CVE-2026-55146

CVE-2026-55146

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 59/100
Published: 2026-10-30 Modified: 2026-11-06 First seen: 2026-10-30 Status: active

Attack Surface

Network Low Complexity No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
S: Unchanged
C: None
I: Low
A: None

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.

Weakness Classification (1)

Affected Software (4)

VendorProductVersion
aces Loris >= 16.0.0, < 27.0.4
aces Loris >= 28.0.0, < 28.0.2
aces Loris >= 16.0.0, < 27.0.4
aces Loris >= 28.0.0, < 28.0.2

References & Advisories (5)

Bug Bounty Relevance

59 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

4.3 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

EPSS — Exploitation Probability

0.21%
Raw Score 0.002130
Percentile 11.7%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00213
2026-11-12
0.00213
2026-11-10
0.00213
2026-11-09
0.00213
2026-11-08
0.00213
2026-11-07
0.00213
2026-11-06
0.00213
2026-11-05
0.00213
2026-11-04
0.00213
2026-11-03
0.00213
2026-11-02
0.00213
2026-11-01
0.00213
2026-10-31
0.00213

Intelligence Sources

mitre ref →
nvd ref →

External Links