What is CVE-2026-40784?

CVE-2026-40784 is a high-severity vulnerability in Mahmudul Hasan Arif Fluentboards, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 8.1/10. Published 2026-04-15.

How severe is CVE-2026-40784?

High severity. CVSS v3 base score is 8.1 out of 10.

Auth bypass in Mahmudul Hasan Arif Fluentboards

CVE-2026-40784

Authorization Bypass Through User-Controlled Key vulnerability in Mahmudul Hasan Arif FluentBoards fluent-boards allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects FluentBoards: from n/a through <= 1…

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.000 (11.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.

Affected products

Mahmudul Hasan Arif Fluentboards — versions 0

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

audit@patchstack.com (vdb-entry)

Frequently asked questions

What is CVE-2026-40784?: CVE-2026-40784 is a high-severity vulnerability in Mahmudul Hasan Arif Fluentboards, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 8.1/10. Published 2026-04-15.
How severe is CVE-2026-40784?: High severity. CVSS v3 base score is 8.1 out of 10.