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CVE-2026-55550— NextCRM has RBAC Bypass in MCP Product Tools that Allows Low-Privileged Users to Modify the CRM Product Catalog

Quick assessment

Affected
pdovhomilja nextcrm-app
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.

pdovhomilja nextcrm-app是pdovhomilja个人开发者的一款云计算客户关系管理应用程序。 pdovhomilja nextcrm-app 0.12.1版本存在安全漏洞，该漏洞源于MCP product tools通过/api/mcp/mcp接口使用用户生成的Bearer令牌暴露写操作且未实施角色检查，可能导致任何能够生成MCP API令牌的经过身份验证的低权限用户在共享CRM产品目录中创建、修改、存档或软删除产品。

CVSS 7.1 · High EPSS 0.34% · P24

Possible ATT&CK Techniques 1 AI

T1098 · Account Manipulation

Affected Version Matrix 1

VendorProduct Version RangeStatus
pdovhomilja nextcrm-app = 0.12.1 affected
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I. Basic Information for CVE-2026-55550

Vulnerability Information
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Vulnerability Title
NextCRM has RBAC Bypass in MCP Product Tools that Allows Low-Privileged Users to Modify the CRM Product Catalog
Source: CVE Program / CVE List V5
Vulnerability Description
NextCRM is open-source customer relationship management (CRM) software. The CRM product catalog is an organization-wide business object. Normal application server actions restrict product creation, update, and deletion to `manager` and `admin` roles. However, in version 0.12.1, the MCP product tools expose the same write operations through `/api/mcp/mcp` using user-generated Bearer tokens and do not enforce role checks. Any authenticated low-privileged user who can generate an MCP API token can create, modify, archive, or soft-delete products in the shared CRM product catalog. Version 0.12.3 contains a fix.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
pdovhomilja nextcrm-app 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
pdovhomilja nextcrm-app是pdovhomilja个人开发者的一款云计算客户关系管理应用程序。 pdovhomilja nextcrm-app 0.12.1版本存在安全漏洞，该漏洞源于MCP product tools通过/api/mcp/mcp接口使用用户生成的Bearer令牌暴露写操作且未实施角色检查，可能导致任何能够生成MCP API令牌的经过身份验证的低权限用户在共享CRM产品目录中创建、修改、存档或软删除产品。
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
pdovhomilja nextcrm-app = 0.12.1 -

II. Public POCs for CVE-2026-55550

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 9200 chars
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III. Intelligence Information for CVE-2026-55550

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Vendor Advisories for CVE-2026-55550 (1)

Same Patch Batch · pdovhomilja · 2026-07-20 · 4 CVEs total

CVE-2026-47129 8.1 HIGH NextCRM has Broken Access Control in Server Actions that allows any authenticated user to
CVE-2026-55544 7.6 HIGH NextCRM has BOLA/IDOR in MCP Campaign Tools that Allows Cross-User Campaign Disclosure and
CVE-2026-47130 7.1 HIGH NextCRM has a BOLA/IDOR in PATCH /api/crm/contacts/[id] that allows Cross-Tenant CRM Data

IV. Related Vulnerabilities

Same product: nextcrm-app
Same vendor: pdovhomilja
Same weakness: CWE-269

V. Comments for CVE-2026-55550

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