by Kastro
Paper/Archive/CVE-2026-73487

CVE-2026-73487

FlowiseAI Flowise — Flowise before 3.1.3 Prompt Injection RCE via CSV Agent

EPSS 1.0%public exploitCVSS 9.8
critical.is priorityof 100
52
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 61.5.615 × 2012.3Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

Flowise before 3.1.3 contains a regex-based Python code validator bypass in CSV and Airtable Agent nodes that allows unauthenticated attackers to inject malicious code via prompt injection. Attackers can exploit unblocked pandas functions like pd.read_json() to exfiltrate datasets, perform SSRF against internal services, or achieve code execution through the unauthenticated prediction API.

Affected

ProductAffectedFixed inSource
Flowise< 3.1.33.1.3CNA
Flowise< 3.1.33.1.3CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
VulnCheck (CNA)9.0CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

exploitgithub.com/FlowiseAI/Flowise/security/advisories/GHSA-w7x8-q2gp-5cggwriteupvulncheck.com/advisories/flowise-before-prompt-injection-rce-via-csv-agent