Vulnerability Description
Flowise before 3.1.3 contains a code injection vulnerability in the CSV Agent node's customReadCSV parameter that allows authenticated attackers to execute arbitrary Python code. The validator uses a static regex blocklist that can be bypassed through obfuscation techniques, enabling attackers to execute code in the unsandboxed pyodide environment with full system access.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Flowiseai | Flowise | < 3.1.3 |
Related Weaknesses (CWE)
References
- https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-4878-cqgq-j53vExploitVendor Advisory
- https://www.vulncheck.com/advisories/flowise-before-code-injection-via-csv-agentThird Party Advisory
- https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-4878-cqgq-j53vExploitVendor Advisory
FAQ
What is CVE-2026-73486?
CVE-2026-73486 is a vulnerability with a CVSS score of 8.8 (HIGH). Flowise before 3.1.3 contains a code injection vulnerability in the CSV Agent node's customReadCSV parameter that allows authenticated attackers to execute arbitrary Python code. The validator uses a ...
How severe is CVE-2026-73486?
CVE-2026-73486 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-73486?
Check the references section above for vendor advisories and patch information. Affected products include: Flowiseai Flowise.