Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-90533

CVE-2026-90533MEDIUM

FlowiseAI Flowise — Flowise before 3.1.4 Broken Access Control via organizationuser

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   H   N   L   N   H   N   N    6.0   .0034   24.6     —

AFFECTED
  Product  Versions     Fixed
  Flowise  unspecified  3.1.4

TIMELINE
  Sep 12  Reserved by VulnCheck
  Sep 12  Published (CNA: VulnCheck)
  Sep 15  EXPLOIT PUBLISHED — CVE-2026-90533 (FlowiseAI Flowise). Public exploit reference added.

CWE-862 · CNA: VulnCheck · CVSS v4.0 · 2 references · NVD status: Analyzed

Description

Flowise before 3.1.4 contains a broken access control vulnerability in GET /api/v1/organizationuser that allows any authenticated organization member to retrieve the organization owner's full user record including bcrypt password hash and temporary tokens. Attackers can query the endpoint with any user ID to obtain the owner's credential hash for offline cracking, enabling account takeover of the highest-privileged account.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
September 12, 2026	Reserved	Reserved by VulnCheck
September 12, 2026	Published	Published (CNA: VulnCheck)
September 15, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-90533 (FlowiseAI Flowise). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
FlowiseAI	Flowise	—	—	3.1.4

Weaknesses

CWE-862

References (2)

https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-fhxm-xxcx-g6x3 [Exploit, Vendor Advisory]
https://www.vulncheck.com/advisories/flowise-before-3.1.4-broken-access-control-via-organizationuser [Third Party Advisory]

Authoritative record: CVE-2026-90533 at cve.org

Vendors: flowiseai

Weaknesses: CWE-862

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-90533 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.