CVE-2026-57496: CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in Labs64 NetLicensing-MCP
Description
CVE-2026-57496 is a critical path traversal vulnerability in Labs64 NetLicensing-MCP versions prior to 0.1.8. It allows an authenticated MCP client with a non-administrative API key to manipulate the product_number parameter to access sensitive token data that should be protected. This can lead to disclosure of administrative tokens, enabling broad read, write, and delete access to the NetLicensing account. The vulnerability is fixed in version 0.1.8.
CVSS v3.1
Score 9.6critical
Affected software
Labs64
NetLicensing-MCP
pkg:github/labs64/NetLicensing-MCPRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
NetLicensing MCP Server versions before 0.1.8 improperly handle the product_number parameter in the netlicensing_get_product function. This parameter is interpolated into a REST path without validation, allowing path traversal to the /token endpoint. The response bypasses token redaction protections, exposing plaintext token values. An attacker with a non-administrative API key can exploit this to retrieve administrative tokens, escalating privileges and gaining extensive control over the NetLicensing account. The issue is resolved in version 0.1.8.
Potential Impact
An authenticated user with a non-administrative API key can exploit this vulnerability to obtain plaintext administrative tokens. This leads to a complete compromise of the NetLicensing account, including the ability to read, write, and delete licensing data. The CVSS score of 9.6 reflects the high impact on confidentiality and integrity, with no impact on availability.
Mitigation Recommendations
Upgrade to version 0.1.8 or later, where this vulnerability is fixed. No other mitigations are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-24T14:53:40.111Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ad123c12cdf04f65652b7b2
Added to database: 10/15/2026, 19:04:33 UTC
Last enriched: 10/15/2026, 19:18:12 UTC
Last updated: 10/15/2026, 19:19:21 UTC
Views: 12
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.