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-2026-73488

CVE-2026-73488MEDIUM

FlowiseAI Flowise — Flowise before 3.1.3 IDOR via customer-default-source endpoint

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   P   L   N   H   N   N    6.0   .0037   28.6     —

AFFECTED
  Product  Versions     Fixed
  Flowise  unspecified  3.1.3

TIMELINE
  Aug 12  Reserved by VulnCheck
  Aug 13  Published (CNA: VulnCheck)
  Sep 3   EXPLOIT PUBLISHED — CVE-2026-73488 (FlowiseAI Flowise). Public exploit reference added.

CWE-639 · CNA: VulnCheck · CVSS v4.0 · 2 references · NVD status: Analyzed

Description

Flowise versions before 3.1.3 contain an insecure direct object reference vulnerability in the GET /api/v1/organization/customer-default-source endpoint that allows authenticated attackers to access other customers' payment and profile data by manipulating the customerId parameter. Attackers can enumerate predictable customer IDs to retrieve sensitive information including email addresses, account balances, currency types, and billing configurations without authorization checks.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
August 12, 2026	Reserved	Reserved by VulnCheck
August 13, 2026	Published	Published (CNA: VulnCheck)
September 3, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-73488 (FlowiseAI Flowise). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
FlowiseAI	Flowise	—	—	3.1.3

Weaknesses

CWE-639

References (2)

https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-2364-jh4q-m9vm [Exploit, Vendor Advisory]
https://www.vulncheck.com/advisories/flowise-before-idor-via-customer-default-source-endpoint [Third Party Advisory]

Authoritative record: CVE-2026-73488 at cve.org

Vendors: flowiseai

Weaknesses: CWE-639

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-73488 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.