Vulnerability · Published May 12, 2026 · Assigned by GitHub_M
CVE-2026-42156Flowsint: Cypher query injection in node type on node creation
High 7.1
In plain English
A high-severity security flaw in flowsint from reconurge. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 29% of all known vulnerabilities).
Severity (CVSS 4.0)7.1High
Exploit odds (30 days)0.3%top 71.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
Flowsint is an open-source OSINT graph exploration tool designed for cybersecurity investigation, transparency, and verification. Prior to 1.2.3, a remote attacker can create a node with a malicious type that can escape an existing Cypher query and an adversary can execute an arbitrary Cypher query. This vulnerability is fixed in 1.2.3.
Affected products (as reported)
Weakness: CWE-943 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
References
- https://github.com/reconurge/flowsint/security/advisories/GHSA-h5m2-c2c5-968p x_refsource_CONFIRM