CVE-2026-32311
Published: 20 April 2026
Summary
CVE-2026-32311 is a critical-severity OS Command Injection (CWE-78) vulnerability in Flowsint Flowsint. Its CVSS base score is 9.3 (Critical).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 39.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
This vulnerability is AI-related — categorised as Other Platforms; in the Other ATLAS/OWASP Terms risk domain.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).
Deeper analysis
CVE-2026-32311 is an OS command injection vulnerability (CWE-78) in Flowsint, an open-source OSINT graph exploration tool for cybersecurity investigations. The issue resides in the 'org_to_asn' transformer, which processes organization nodes within user-created sketches containing graphs of nodes and relationships tied to OSINT targets like usernames and websites. By injecting shell metacharacters, a remote attacker can exploit this to execute arbitrary OS commands as root on the host machine, facilitated by a Docker container escape. The vulnerability carries a CVSS v3.1 base score of 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) and was published on 2026-04-20.
Any remote attacker can exploit this vulnerability without authentication or user interaction by creating a malicious sketch and triggering the 'org_to_asn' transform on an organization node. Successful exploitation grants full root-level access to the host system, enabling complete compromise including data exfiltration, persistence, or further lateral movement.
The GitHub security advisory (GHSA-9g44-8xv2-f2m9) and fixing commit b52cbbb904c8013b74308d58af88bc7dbb1b055c detail the mitigation, which involves removing the vulnerable code in the 'org_to_asn' transformer implementation. Security practitioners should update Flowsint to at least this commit to prevent exploitation.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-23946
Vulnerability details
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…
more
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.
- CWE(s)
AI Security AnalysisAI
- AI Category
- Other Platforms
- Risk Domain
- Other ATLAS/OWASP Terms
- OWASP Top 10 for LLMs 2025
- None mapped
- Classification Reason
- Matched keywords: transformers
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
CVE enables exploitation of public-facing application (T1190) via OS command injection into Unix shell (T1059.004), with Docker container escape to host root access (T1611).
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly validates inputs to the 'org_to_asn' transformer on organization nodes to block shell metacharacters and prevent OS command injection.
Requires timely remediation of the specific flaw in the 'org_to_asn' transformer by applying the fixing commit b52cbbb904c8013b74308d58af88bc7dbb1b055c.
Enforces least privilege on Flowsint processes and Docker containers to limit the impact of successful command injection and host escape to root.