CVE-2026-55550 NextCRM has RBAC Bypass in MCP Product Tools that Allows Low-Privileged Users to Modify the CRM Product Catalog
Low-privileged users can modify the shared CRM product catalog via MCP tools due to missing role checks, allowing unauthorized data changes.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-55550?
CVE-2026-55550 is a high-severity missing authorization vulnerability in pdovhomilja nextcrm-app, published on 20 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Which versions are affected by CVE-2026-55550?
How do I fix CVE-2026-55550?
No fix has been published for CVE-2026-55550 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-55550 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-55550 exists.
Sources
Also known as GHSA-wv63-cq38-qg58.