RCE in Flowsint
CVE-2026-32311
Flowsint is an open-source OSINT graph exploration tool designed for cybersecurity investigation, transparency, and verification. Flowsint allows a user to create investigations, which are used to manage sketches and analyses. Sketches have controllable graphs, which are comprised of nodes and relationships. The sketches contain information on an OSINT target (usernames, websites, etc) within these nodes and relationships. The nodes can have automated processes execute on them called 'transformers'. A remote attacker can create a sketch, then trigger the 'org_to_asn' transform on an organization node to execute arbitrary OS commands as root on the host machine via shell metacharacters and a docker container escape. Commit b52cbbb904c8013b74308d58af88bc7dbb1b055c appears to remove the code that causes this issue.
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.005 (41.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Flowsint
- Reconurge Flowsint — versions < b52cbbb904c8013b74308d58af88bc7dbb1b055c
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-32311?
- CVE-2026-32311 is a critical-severity vulnerability in Flowsint, classified under OS Command Injection. CVSS score: 9.8/10. Published 2026-04-20.
- How severe is CVE-2026-32311?
- Critical severity. CVSS v3 base score is 9.8 out of 10.