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

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-59726— Ruflo: Unauthenticated RCE in MCP bridge default docker-compose deployment

Quick assessment

Affected
ruvnet ruflo
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.

rUv Ruflo是rUv个人开发者的一个智能体元框架。 rUv Ruflo 3.16.3之前版本存在安全漏洞，该漏洞源于默认docker-compose部署中MCP bridge POST /mcp和POST /mcp/:group端点未进行身份验证，可能导致未经身份验证的网络攻击者调用tools/call to terminal_execute获取shell并读取提供程序API密钥以及投毒AgentDB学习模式。

CVSS 10.0 · Critical EPSS 3.02% · P87

Public Exploits 1

Nuclei · 1 CVE-2026-59726.yaml [template]

Affected Version Matrix 1

VendorProduct Version RangeStatus
ruvnet ruflo < 3.16.3 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-59726

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
Ruflo: Unauthenticated RCE in MCP bridge default docker-compose deployment
Source: CVE Program / CVE List V5
Vulnerability Description
Ruflo is an agent meta-harness for Claude Code and Codex. Prior to 3.16.3, ruflo's default docker-compose deployment exposed the MCP bridge POST /mcp and POST /mcp/:group endpoints without authentication, allowing an unauthenticated network attacker to invoke tools/call to terminal_execute, obtain a shell in the bridge container, read provider API keys, and poison AgentDB learning-store patterns. This issue is fixed in version 3.16.3.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
rUv Ruflo 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
rUv Ruflo是rUv个人开发者的一个智能体元框架。 rUv Ruflo 3.16.3之前版本存在安全漏洞，该漏洞源于默认docker-compose部署中MCP bridge POST /mcp和POST /mcp/:group端点未进行身份验证，可能导致未经身份验证的网络攻击者调用tools/call to terminal_execute获取shell并读取提供程序API密钥以及投毒AgentDB学习模式。
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
ruvnet ruflo < 3.16.3 -

II. Public POCs for CVE-2026-59726

# POC Description Source Link Shenlong Link
1 ruflo MCP bridge (< 3.16.3) in its default docker-compose deployment exposes POST /mcp with no authentication and binds to all interfaces (0.0.0.0:3001). The executeTool() function has no server-side deny list for dangerous tools, allowing an unauthenticated attacker to invoke tools/call with ruflo__terminal_execute, which runs execSync(command) on attacker-supplied input. This yields arbitrary command execution as the node user (uid 1000) inside the bridge container. The blocklist (AUTOPILOT_BLOCKED_PATTERNS + isBlockedTool()) is enforced only in the autopilot SSE handler; POST /mcp and POST /mcp/:group bypass it entirely. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-59726.yaml POC Details
AI-Generated POC Premium
Qwen3.6-35B-A3B · 5111 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-2026-59726

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-59726 (2)

Vendor Advisories for CVE-2026-59726 (1)

IV. Related Vulnerabilities

Same vendor: ruvnet
Same weakness: CWE-78

V. Comments for CVE-2026-59726

No comments yet

Leave a comment