# 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.

- **Severity:** High 7.1 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 20 Jul 2026
- **Updated:** 20 Jul 2026
- **Also known as:** GHSA-wv63-cq38-qg58

## 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.

Weakness: CWE-862 (Missing Authorization), CWE-284 (Improper Access Control), CWE-269 (Improper Privilege Management)

## 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.

## Is CVE-2026-55550 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-55550 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-55550 and fix it if it is affected.

What it is: 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.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-55550 exists.

Affected product: pdovhomilja nextcrm-app. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-55550/ (Markdown: https://insights.sbomify.com/CVE-2026-55550/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-55550
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-55550
- OSV: https://osv.dev/vulnerability/CVE-2026-55550

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-55550/
Summaries are generated and may contain mistakes; the official description above is the record.