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PatchSiren cyber security CVE debrief

CVE-2026-40784 Mahmudul Hasan Arif CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-04-15T11:16:37.030Z and has not been modified since then. The vulnerability is an Authorization Bypass Through User-Controlled Key issue in Mahmudul Hasan Arif FluentBoards fluent-boards, affecting versions from n/a through <= 1.91.2. This issue allows for exploitation of incorrectly configured access control security levels. Defenders should assess exposure and prioritize verification of FluentBoards plugin installations and configurations.

Vendor
Mahmudul Hasan Arif
Product
FluentBoards
CVSS
HIGH 8.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-04-15
Original CVE updated
2026-10-26
Advisory published
2026-04-15
Advisory updated
2026-10-26

Who should care

Defenders responsible for FluentBoards plugin installations and configurations should assess exposure and prioritize verification. This includes reviewing plugin versions, configurations, and restricting access to sensitive areas to prevent potential authorization bypass. Security teams and operators managing FluentBoards should verify and update their systems according to vendor guidance.

Why it matters

CVE-2026-40784 is a high-severity vulnerability in Mahmudul Hasan Arif FluentBoards fluent-boards that allows for authorization bypass through user-controlled keys. Defenders responsible for FluentBoards plugin installations and configurations should assess exposure and prioritize verification.

  • Defenders need to verify FluentBoards plugin versions and configurations to prevent potential authorization bypass.
  • Restricting access to sensitive areas of the plugin can help mitigate the vulnerability.

Technical summary

The CVE record indicates an Authorization Bypass Through User-Controlled Key vulnerability in Mahmudul Hasan Arif FluentBoards fluent-boards, affecting versions from n/a through <= 1.91.2. The vulnerability has a CVSS score of 8.1 and is classified as HIGH.

Defensive priority

Defenders should prioritize verifying FluentBoards plugin versions and configurations to prevent potential authorization bypass.

Recommended defensive actions

  • Verify FluentBoards plugin versions and configurations to prevent potential authorization bypass.
  • Restrict access to sensitive areas of the plugin.
  • Monitor plugin updates and patches.

Evidence notes

The CVE record indicates an Authorization Bypass Through User-Controlled Key vulnerability in Mahmudul Hasan Arif FluentBoards fluent-boards, affecting versions from n/a through <= 1.91.2.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-40784 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-40784

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-40784 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-40784

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.