Vulnerability · Published May 12, 2026 · Assigned by GitHub_M
CVE-2026-42158Flowsint: Broken Access Control allows modification of investigation metadata from any user
Low 2.3
In plain English
A low-severity improper access control in flowsint from reconurge. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities).
Severity (CVSS 4.0)2.3Low
Exploit odds (30 days)0.2%top 88.2% 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, an adversary with knowledge of an investigation ID, could update the metadata of an investigation of another user. This vulnerability is fixed in 1.2.3.
Affected products (as reported)
Weakness: CWE-284 · Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
References
- https://github.com/reconurge/flowsint/security/advisories/GHSA-5h6v-5hv3-3jjw x_refsource_CONFIRM