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CVE-2026-77759

Published Aug 21, 2026 CWE-639 EPSS 0.32% (24th pctl)

Overview

CVE-2026-77759 is a known-severity vulnerability. It was published on August 21, 2026.

Technical Description

Authorization Bypass Through User-Controlled Key in the transaction API in Roskus Prospero

Flow CRM 5.0.0 through 5.3.5 allows an authenticated user to read the transactions of other

companies on the same instance via an incremented identifier in GET /api/transaction/{id},

which is resolved without company scoping and without any permission check.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Frequently Asked Questions

What is CVE-2026-77759?

CVE-2026-77759 is a known-severity vulnerability. It was published on August 21, 2026.

How severe is CVE-2026-77759?

CVSS score information is not yet available for this vulnerability. Check back as the CVE record is updated by NVD analysts.

How do I fix or remediate CVE-2026-77759?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-77759?

CyberStrike's AI-powered security agents can automatically detect CVE-2026-77759 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.