Critical severityNVD Advisory· Published Aug 13, 2026· Updated Aug 13, 2026

CVE-2026-73486

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Flowiseai/Flowisellm-fuzzy
Range: <3.1.3

Patches

Vulnerability mechanics

References

github.com/FlowiseAI/Flowise/security/advisories/GHSA-4878-cqgq-j53vnvd
www.vulncheck.com/advisories/flowise-before-code-injection-via-csv-agent-customreadcsvnvd

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