What is CVE-2026-35165?

CVE-2026-35165 is a medium-severity vulnerability in Aces Loris, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.3/10. Published 2026-04-08.

How severe is CVE-2026-35165?

Medium severity. CVSS v3 base score is 6.3 out of 10.

Auth bypass in Aces Loris

CVE-2026-35165

LORIS (Longitudinal Online Research and Imaging System) is a self-hosted web application that provides data- and project-management for neuroimaging research. From 21.0.0 to before 27.0.3 and 28.0.1, while the document_repository frontend…

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.000 (9.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

Affected products

Aces Loris — versions >= 21.0.0, < 27.0.3, >= 28.0.0, < 28.0.1

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

https://github.com/aces/Loris/security/advisories/GHSA-qp6x-qfx7-54wp (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-35165?: CVE-2026-35165 is a medium-severity vulnerability in Aces Loris, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.3/10. Published 2026-04-08.
How severe is CVE-2026-35165?: Medium severity. CVSS v3 base score is 6.3 out of 10.