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.
Published: 2026-08-13
Score: 9 Critical
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories

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History

Thu, 13 Aug 2026 11:45:00 +0000

Type Values Removed Values Added
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.
Title Flowise before 3.1.3 Code Injection via CSV Agent customReadCSV
First Time appeared Flowiseai
Flowiseai flowise
Weaknesses CWE-94
CPEs cpe:2.3:a:flowiseai:flowise:*:*:*:*:*:*:*:*
Vendors & Products Flowiseai
Flowiseai flowise
References
Metrics cvssV4_0

{'score': 9, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H'}


Subscriptions

Flowiseai Flowise
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-08-13T11:28:06.103Z

Reserved: 2026-08-12T18:19:17.025Z

Link: CVE-2026-73486

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-13T12:17:23.947

Modified: 2026-08-13T12:17:23.947

Link: CVE-2026-73486

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-13T12:30:10Z

Weaknesses
  • CWE-94

    Improper Control of Generation of Code ('Code Injection')