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PatchSiren cyber security CVE debrief

CVE-2026-73488 FlowiseAI CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-08-13T12:17:24.220Z and has not been modified since then. The NVD entry is currently Awaiting Analysis. 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. The vulnerability can be exploited by enumerating predictable customer IDs to retrieve sensitive information including email addresses, account balances, currency types, and billing configurations without authorization checks. This vulnerability affects Flowise users, administrators, and security teams who should take immediate action to upgrade to version 3.1.3 or later and implement proper security measures to protect customer data.

Vendor
FlowiseAI
Product
Flowise
CVSS
MEDIUM 6
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-13
Original CVE updated
2026-08-31
Advisory published
2026-08-13
Advisory updated
2026-08-31

Who should care

Flowise users, administrators, and security teams should be aware of this vulnerability and take immediate action to upgrade to version 3.1.3 or later and implement proper security measures to protect customer data.

Technical summary

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

Defensive priority

Authenticated attackers can access sensitive customer data by manipulating the customerId parameter in the GET /api/v1/organization/customer-default-source endpoint, due to an insecure direct object reference vulnerability in Flowise versions before 3.1.3.

Recommended defensive actions

  • Verify Flowise version and upgrade to 3.1.3 or later
  • Restrict access to the GET /api/v1/organization/customer-default-source endpoint
  • Implement proper authorization checks for customer data access
  • Monitor for suspicious activity on customer accounts
  • Update incident response plans to address potential data breaches

Evidence notes

The CVE-2026-73488 record indicates an insecure direct object reference vulnerability in Flowise versions before 3.1.3. The vulnerability allows authenticated attackers to access other customers' payment and profile data by manipulating the customerId parameter in the GET /api/v1/organization/customer-default-source endpoint. The NVD entry is currently Awaiting Analysis.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-73488 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-73488

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

  • CVE-2026-73488 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-73488

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

Supplemental references

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.