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CVE-2026-73486— Flowise before 3.1.3 Code Injection via CSV Agent customReadCSV

Quick assessment

Affected
FlowiseAI Flowise
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

FlowiseAI Flowise是FlowiseAI公司开源的一款可视化编排语言模型应用流程的工具。 FlowiseAI Flowise 3.1.3之前版本存在代码注入漏洞，该漏洞源于CSV Agent节点的customReadCSV参数存在代码注入漏洞，验证器使用静态正则表达式黑名单可被混淆技术绕过，可能导致已认证攻击者执行任意Python代码并获取完整系统访问权限。

CVSS 9.0 · Critical EPSS 0.66% · P50

Affected Version Matrix 4

VendorProduct Version RangeStatus
FlowiseAI Flowise < 3.1.3 affected
3.1.3 unaffected
< 3.1.3 affected
3.1.3 unaffected
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I. Basic Information for CVE-2026-73486

Vulnerability Information
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Vulnerability Title
Flowise before 3.1.3 Code Injection via CSV Agent customReadCSV
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Vulnerability Title
FlowiseAI Flowise 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FlowiseAI Flowise是FlowiseAI公司开源的一款可视化编排语言模型应用流程的工具。 FlowiseAI Flowise 3.1.3之前版本存在代码注入漏洞，该漏洞源于CSV Agent节点的customReadCSV参数存在代码注入漏洞，验证器使用静态正则表达式黑名单可被混淆技术绕过，可能导致已认证攻击者执行任意Python代码并获取完整系统访问权限。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
FlowiseAI Flowise 0 ~ 3.1.3 -
FlowiseAI Flowise 0 ~ 3.1.3 -

II. Public POCs for CVE-2026-73486

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 6326 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-73486

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Vendor Advisories for CVE-2026-73486 (2)

Same Patch Batch · FlowiseAI · 2026-08-13 · 10 CVEs total

CVE-2026-73483 9.4 CRITICAL Flowise before 3.1.3 Sandbox Escape via Puppeteer
CVE-2026-73487 9.0 CRITICAL Flowise before 3.1.3 Prompt Injection RCE via CSV Agent
CVE-2026-73485 9.0 CRITICAL Flowise before 3.1.3 Remote Code Execution via Airtable Agent
CVE-2026-73601 9.0 CRITICAL Flowise before 3.1.3 Remote Code Execution via Custom MCP
CVE-2026-73602 9.0 CRITICAL Flowise before 3.1.3 Sandbox Escape to RCE
CVE-2026-73484 8.6 HIGH Flowise before 3.1.3 Sandbox Escape via Pandas Methods
CVE-2026-73604 6.5 MEDIUM Flowise before 3.1.3 Credential Exposure via API
CVE-2026-73603 6.3 MEDIUM Flowise before 3.1.4 Credential Abuse via Text-to-Speech
CVE-2026-73488 6.0 MEDIUM Flowise before 3.1.3 IDOR via customer-default-source endpoint

IV. Related Vulnerabilities

Same product: Flowise
Same vendor: FlowiseAI
Same weakness: CWE-94

V. Comments for CVE-2026-73486

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