CVE-2026-73487
Flowise before 3.1.3 Prompt Injection RCE via CSV Agent
CRITICAL 9.0EPSS 1.0%
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
- FlowiseAI · Flowise
- CVSS v4.0 VULNCHECK
- 9.0 CRITICAL
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS v4.0 GitHub
- 9.0 CRITICAL
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N - CVSS v3.1 NVD
- 9.8 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS
- 0.96% chance of exploitation in the next 30 days, 61st percentile
- Published
- 2026-08-13
- Updated
- 2026-08-14
Proof-of-concept exploits (1)
Security advisories
- FlowiseAI/Flowise/security/advisories/GHSA-w7x8-q2gp-5cgg
- https://www.vulncheck.com/advisories/flowise-before-prompt-injection-rce-via-csv-agent