---
title: "Labs64 NetLicensing MCP Server - Path Traversal"
description: "Labs64 NetLicensing MCP Server < 0.1.8 contains a path traversal caused by lack of path-segment validation in product_number parameter, letting authenticated non-admin API key users retrieve plaintext tokens, exploit requires authenticated MCP client."
url: https://panop.io/threat-heartbeat/CVE-2026-57496/
---

# CVE-2026-57496 Labs64 NetLicensing MCP Server - Path Traversal

Labs64 NetLicensing MCP Server < 0.1.8 contains a path traversal caused by lack of path-segment validation in product\_number parameter, letting authenticated non-admin API key users retrieve plaintext tokens, exploit requires authenticated MCP client.

CVSS base score 9.6 /10

Critical

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-57496)

## Details

Type

Path Traversal

Impact

Information Disclosure

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

Published

15 October 2026

Updated

16 October 2026

Weakness

[CWE-22](https://cwe.mitre.org/data/definitions/22.html)

## Vendor fix

Update to version 0.1.8 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-57496](https://nvd.nist.gov/vuln/detail/CVE-2026-57496)
- [https://github.com/Labs64/NetLicensing-MCP/commit/b8fd0ea76d533202573eb24add9fb2fbd9331496](https://github.com/Labs64/NetLicensing-MCP/commit/b8fd0ea76d533202573eb24add9fb2fbd9331496)
- [https://github.com/Labs64/NetLicensing-MCP/pull/6](https://github.com/Labs64/NetLicensing-MCP/pull/6)
- [https://github.com/Labs64/NetLicensing-MCP/releases/tag/0.1.8](https://github.com/Labs64/NetLicensing-MCP/releases/tag/0.1.8)
- [https://github.com/Labs64/NetLicensing-MCP/security/advisories/GHSA-hxpf-9xvq-wph8](https://github.com/Labs64/NetLicensing-MCP/security/advisories/GHSA-hxpf-9xvq-wph8)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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