{"id":"CVE-2026-77759","title":"Authorization Bypass Through User-Controlled Key in the transaction API in Roskus Prospero\nFlow CRM 5.0.0 through 5.3.5 allows an authenticated user to read the transactions of other\ncompanies on the same instance via an incremented iden…","summary":"Authorization Bypass Through User-Controlled Key in the transaction API in Roskus Prospero\nFlow CRM 5.0.0 through 5.3.5 allows an authenticated user to read the transactions of other\ncompanies on the same instance via an incremented iden…","severity":"none","cwe":["CWE-639"],"published":"2026-08-21","updated":"2026-10-15","sourceUpdated":"2026-10-15T19:10:00.173","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-77759","references":[{"url":"https://github.com/Roskus/prospero-flow-crm/commit/980c35ac00e419591a8adc2d1dbcc120ea62e273","label":"4daa8cea-433a-44bd-9456-53b127fc289a"},{"url":"https://github.com/Roskus/prospero-flow-crm/releases/tag/v5.5.3","label":"4daa8cea-433a-44bd-9456-53b127fc289a"},{"url":"https://secur0.com/en/cna/cve-list/cve-2026-77759-idor-missing-authz-prospero-transaction-api","label":"4daa8cea-433a-44bd-9456-53b127fc289a"}],"tags":["nvd"],"epss":0.00509,"epssPercentile":0.42021,"ingestedAt":"2026-10-15T19:25:46.349Z","slug":"CVE-2026-77759","body":"## Overview\n\nAuthorization Bypass Through User-Controlled Key in the transaction API in Roskus Prospero\nFlow CRM 5.0.0 through 5.3.5 allows an authenticated user to read the transactions of other\ncompanies on the same instance via an incremented identifier in GET /api/transaction/{id},\nwhich is resolved without company scoping and without any permission check.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}