{"cve":"CVE-2026-57496","nvd":{"published":"2026-10-15T19:17:41.733","modified":"2026-10-21T01:17:39.360","status":"Deferred","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N","score":9.6},"cwes":["CWE-22"],"references":["https://github.com/Labs64/NetLicensing-MCP/commit/b8fd0ea76d533202573eb24add9fb2fbd9331496","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/security/advisories/GHSA-hxpf-9xvq-wph8","https://github.com/Labs64/NetLicensing-MCP/security/advisories/GHSA-hxpf-9xvq-wph8"],"products":[],"source":"nvd","synced_at":"2026-10-21T03:56:58.798400159+00:00"},"epss":{"cve":"CVE-2026-57496","score":0.00435,"percentile":0.37537,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-hxpf-9xvq-wph8","url":"https://osv.dev/vulnerability/GHSA-hxpf-9xvq-wph8","summary":"netlicensing-mcp: REST Path Traversal Bypasses Token Redaction","modified":"2026-10-15T18:45:10.600088359Z","packages":[{"ecosystem":"PyPI","name":"netlicensing-mcp","purl":"pkg:pypi/netlicensing-mcp","ranges":["<0.1.8"],"fixed":["0.1.8"]}]},{"id":"PYSEC-2026-3489","url":"https://osv.dev/vulnerability/PYSEC-2026-3489","summary":"netlicensing-mcp: REST Path Traversal Bypasses Token Redaction","modified":"2026-07-23T15:00:16.520679525Z","packages":[{"ecosystem":"PyPI","name":"netlicensing-mcp","purl":"pkg:pypi/netlicensing-mcp","ranges":["<0.1.8"],"fixed":["0.1.8"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}