CVE-2026-55550

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

State: Published
Severity: 7.1 High
Published: Jul 20, 2026
Updated: Jul 20, 2026
Reserved: Jun 16, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	7.1 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L	GitHub_M

Weaknesses

CWE-269 Improper Privilege Management
CWE-284 Improper Access Control
CWE-862 Missing Authorization

Affected Products

Product	Versions
nextcrm-apppdovhomilja	= 0.12.1Affected

References

https://github.com/pdovhomilja/nextcrm-app/security/advisories/GHSA-wv63-cq38-qg58

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