CVE-2026-103758— Obot 0.21.1 through 0.24.1 Authorization Bypass via /mcp-connect-composite/ Route
Quick assessment
Affected
obot-platform obot
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Obot 0.21.1 至 0.24.1 版本存在一个授权绕过漏洞，允许已认证用户访问 MCP 服务器。该漏洞的原因是 拒绝列表（deny list）中遗漏了 路由。拥有复合 MCP ID 的基础角色（Basic-role）用户可通过 代理请求，从而调用受访问控制规则（Access Control Rules）限制的 MCP 服务器上的工具。
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I. Basic Information for CVE-2026-103758
Vulnerability Information
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Vulnerability Title
Obot 0.21.1 through 0.24.1 Authorization Bypass via /mcp-connect-composite/ Route
Source: CVE Program / CVE List V5
Vulnerability Description
Obot 0.21.1 through 0.24.1 contains an authorization bypass vulnerability that allows authenticated users to reach MCP servers because the checkUI deny list omits the /mcp-connect-composite/ route. Basic-role users with a composite MCP ID can proxy requests through mcpGateway.Proxy to invoke tools on MCP servers restricted by Access Control Rules.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| obot-platform | obot | 0.21.1 ~ 0.24.1 | - |
|
II. Public POCs for CVE-2026-103758
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2026-103758 (2)
IV. Related Vulnerabilities
Same product: obot
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CVE-2026-101084
obot before v0.21.1 Authorization Bypass via /mcp-connect -
CVE-2026-101065
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CVE-2026-101063
Obot before v0.23.0 Authentication Bypass via Registry API -
CVE-2026-101064
Obot before v0.23.0 Server-Side Request Forgery via MCP -
CVE-2026-101062
Obot before v0.23.0 Authentication Bypass via OAuth Dynamic
Same vendor: obot-platform
-
CVE-2026-101084
obot before v0.21.1 Authorization Bypass via /mcp-connect -
CVE-2026-101065
Obot Quickstart Docker Deployment Unauthenticated Admin Acce -
CVE-2026-101063
Obot before v0.23.0 Authentication Bypass via Registry API -
CVE-2026-101064
Obot before v0.23.0 Server-Side Request Forgery via MCP -
CVE-2026-101062
Obot before v0.23.0 Authentication Bypass via OAuth Dynamic
Same weakness: CWE-863
-
CVE-2026-103284
Ghost 5.125.1 before 6.57.1 Information Disclosure via Feedb -
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Ghost 4.3.0 before 6.58.0 Incorrect Authorization via Staff -
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Ghost 4.0.0 before 6.63.0 Restricted Content Bypass -
CVE-2026-103266
Ghost 5.2.0 before 6.62.0 Unauthenticated Stripe Checkout Ac -
CVE-2026-103265
Fleet before 4.89.0 Information Disclosure via MDM Command R
V. Comments for CVE-2026-103758
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