Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-69263— Flowise: CVE-2025-8943 Patch Bypass: npm_config_yes bypasses MCP environment variable blocklist (Unauthenticated RCE)

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公司开源的一个用于轻松构建 LLM 应用程序的工具。 FlowiseAI Flowise 3.1.3之前版本存在输入验证错误漏洞，该漏洞源于对CVE-2025-8943的缓解措施不完整，仅阻止了npx的-y和--yes标志，但通过设置npm_config_yes=true可绕过，导致npx自动安装并执行指定包。

CVSS 8.7 · High EPSS 0.66% · P49

Affected Version Matrix 1

VendorProduct Version RangeStatus
FlowiseAI Flowise < 3.1.3 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-69263

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Flowise: CVE-2025-8943 Patch Bypass: npm_config_yes bypasses MCP environment variable blocklist (Unauthenticated RCE)
Source: CVE Program / CVE List V5
Vulnerability Description
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, the mitigation for CVE-2025-8943 blocked -y and --yes flags on npx, but packages/components/nodes/tools/MCP/core.ts denied only PATH, LD_LIBRARY_PATH, DYLD_LIBRARY_PATH, and NODE_OPTIONS by exact environment-variable name. Because npm reads configuration from npm_config_* variables, setting npm_config_yes=true reproduced --yes behavior without using a blocked flag, causing npx to auto-install and execute the named package when a Custom MCP server launched. This issue is fixed in version 3.1.3.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
不完整的黑名单
Source: CVE Program / CVE List V5
Vulnerability Title
FlowiseAI Flowise 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FlowiseAI Flowise是FlowiseAI公司开源的一个用于轻松构建 LLM 应用程序的工具。 FlowiseAI Flowise 3.1.3之前版本存在输入验证错误漏洞，该漏洞源于对CVE-2025-8943的缓解措施不完整，仅阻止了npx的-y和--yes标志，但通过设置npm_config_yes=true可绕过，导致npx自动安装并执行指定包。
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 < 3.1.3 -

II. Public POCs for CVE-2026-69263

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 6487 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-2026-69263

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-69263 (2)

Vendor Advisories for CVE-2026-69263 (1)

Vendor Pages for CVE-2026-69263 (1)

Same Patch Batch · FlowiseAI · 2026-08-04 · 22 CVEs total

CVE-2026-70477 9.5 CRITICAL Flowise: CSV Agent Prompt Injection Remote Code Execution Vulnerability
CVE-2026-70470 9.5 CRITICAL Flowise: Pyodide validator Unicode homoglyph bypass leads to RCE
CVE-2026-69254 9.4 CRITICAL Flowise: RCE via NodeVM Sandbox Escape in executeJavaScriptCode() nodeVMOptions Override
CVE-2026-69259 9.4 CRITICAL Flowise RCE via SQLite Record Manager Node
CVE-2026-69256 9.4 CRITICAL Flowise: Remote Code Execution Vulnerability in CSVAgent
CVE-2026-69264 9.4 CRITICAL Flowise: RCE via CSVAgent csvFile data URI base64 segment is interpolated into Python sour
CVE-2026-70478 9.2 CRITICAL Flowise: Unauthenticated OAuth2 token refresh endpoint returns access tokens — enables tok
CVE-2026-69255 9.2 CRITICAL Flowise: CSV Agent Remote Code Execution via Pyodide Code Injection — Root Shell Verified
CVE-2026-69251 9.0 CRITICAL Flowise RCE via TypeORM DataSource
CVE-2026-69253 9.0 CRITICAL Flowise Sandbox Escape to RCE
CVE-2026-69258 8.8 HIGH Flowise: Unauthenticated Property Injection into Flow Execution Context via Ungated `overr
CVE-2026-69250 8.5 HIGH Flowise: Unauthenticated OAuth2 Refresh Enables Non-Blind SSRF and Secret Exfiltration
CVE-2026-70473 8.3 HIGH Flowise: Information Disclosure in GET /api/v1/upsert-history returns the entire server-wi
CVE-2026-70476 8.3 HIGH Flowise: Broken Access Control in Stripe Subscription Endpoints Allows Cross-Tenant Billin
CVE-2026-70474 7.6 HIGH Flowise: Cross-Workspace OAuth2 Credential Metadata Leak
CVE-2026-69257 7.6 HIGH Flowise: SSRF Protection Bypass via IPv4-Mapped IPv6 Addresses
CVE-2026-69252 7.2 HIGH Flowise: Missing authorization on `/api/v1/files` allows low-privileged API keys to list a
CVE-2026-69262 7.1 HIGH Flowise: `DELETE /api/v1/chatflows/:id` does not validate resource type, allowing `agentfl
CVE-2026-70471 7.1 HIGH Flowise: RBAC Bypass Leading to Unauthorized Workspace Variables Disclosure
CVE-2026-70472 7.1 HIGH Flowise: Cross-workspace credential IDOR in openai-assistants-vector-store

Showing top 20 of 22 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Flowise
Same vendor: FlowiseAI
Same weakness: CWE-184

V. Comments for CVE-2026-69263

No comments yet

Leave a comment