Answer in brief
CVE-2026-57496 records a Critical severity (CVSS 9.6) vulnerability in NetLicensing MCP Server: REST Path Traversal Bypasses Token Redaction. The current sources do not mark it as known exploited. The current feed maps Labs64/NetLicensing-MCP (generic), netlicensing-mcp (pip), netlicensing-mcp (pypi). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.6. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Labs64/NetLicensing-MCP (generic), netlicensing-mcp (pip), netlicensing-mcp (pypi). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Labs64/NetLicensing-MCPgeneric | <0.1.8 | 0.1.8 |
| netlicensing-mcppip | <0.1.8 | 0.1.8 |
| netlicensing-mcppypi | >=0 <0.1.8 | 0.1.8 |
Published upstream
Oct 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 19, 2026
NetLicensing MCP Server is a natural-language interface that enables agentic applications to manage the software-licensing lifecycle in Labs64 NetLicensing. Prior to 0.1.8, netlicensing_get_product passes the caller-controlled product_number to src/netlicensing_mcp/tools/products.py, which interpolates it into a REST path consumed by nl_get() in src/netlicensing_mcp/client.py without path-segment validation. A traversal segment can be normalized from the intended product path to the /token endpoint, after which the response is serialized through _wrap_json instead of _wrap_json_token_read, bypassing redact_token_read() protections for APIKEY number and SHOP shopURL fields. An authenticated MCP client with a non-administrative API key can retrieve plaintext token values, and a recovered administrative token can provide broad read, write, and delete access to the NetLicensing account. This issue is fixed in version 0.1.8.
Quoted source text, attributed separately from HOL analysis.