CVE-2026-42156: Cypher Injection in Flowsint OSINT Tool

Successful exploitation of CVE-2026-42156 allows an attacker to inject malicious Cypher queries into Flowsint. This could lead to unauthorized access to sensitive data stored within the graph database, modification of existing data, or even complete database corruption. An attacker could leverage this to manipulate OSINT investigations, plant false information, or exfiltrate data. The blast radius extends to any user relying on the integrity of the Flowsint graph data for their investigations. While not directly leading to system compromise, the manipulation of OSINT data can have significant strategic implications.

1. Veröffentlicht2026-05-12

The primary mitigation for CVE-2026-42156 is to immediately upgrade Flowsint to version 1.2.3 or later. If upgrading is not immediately feasible, consider restricting user permissions to prevent the creation of nodes with potentially malicious types. Implement input validation on all user-supplied data to prevent the injection of malicious Cypher code. There are no specific WAF rules or detection signatures readily available, so focus on patching and input validation. After upgrading, confirm the fix by attempting to create a node with a malicious type and verifying that the Cypher query is properly sanitized.