Medium 6.0Published Aug 13, 2026

CVE-2026-73488Flowise before 3.1.3 IDOR via customer-default-source endpoint

Updated under an hour ago (2026-10-19 07:30 UTC)

Does this affect you?

It affects FlowiseAI Flowise. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for FlowiseAI Flowise

Exploited in the last 30 days

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.

CVSS: 6.0 MEDIUM (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Weakness (CWE): CWE-639
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Analyzed
Record last updated: Aug 13, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

FlowiseAI Flowise flowiseai:flowise (from the name)	before 3.1.3; 3.1.3 not affected	CNA record
flowiseai flowise flowiseai:flowise	before 3.1.3	NVD

References

https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-2364-jh4q-m9vmvendor-advisory, exploit
https://www.vulncheck.com/advisories/flowise-before-idor-via-customer-default-source-endpointthird-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.