Critical 9.3Published Aug 24, 2026

CVE-2026-78365IDOR and missing authorization in Prospero Flow CRM supplier API allows cross-tenant read and modification

Updated under an hour ago (2026-10-19 10:00 UTC)

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It affects Roskus Prospero Flow CRM. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Roskus Prospero Flow CRM

Exploited in the last 30 days

Authorization Bypass Through User-Controlled Key in the supplier API in Roskus Prospero Flow CRM 4.0.0 through 5.3.1 allows any authenticated user to read and modify another company's supplier record, and to reassign it to their own company, via a PUT request to /api/supplier/{id} setting company_id in the body.

CVSS: 9.3 CRITICAL (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Weakness (CWE): CWE-639, CWE-862
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Secur0
NVD analysis: Deferred
Record last updated: Aug 24, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Roskus Prospero Flow CRM roskus:prospero_flow_crm (from the name)	from 4.0.0 before 5.3.2	CNA record

References

https://github.com/Roskus/prospero-flow-crm/commit/4a52477e6ed66afa436814c80e7bcd68670dd596patch
https://github.com/Roskus/prospero-flow-crm/releases/tag/v5.5.3release-notes
https://secur0.com/en/cna/cve-list/cve-2026-78365-idor-supplier-api-cross-tenant-updatethird-party-advisory, technical-description

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.