{"answers":{"affected":"3 open source packages ship an affected version, including netlicensing-mcp.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-57496 exists.","fix":"Upgrade netlicensing-mcp to 0.1.8 or later.","what":"CVE-2026-57496 is a critical path traversal vulnerability in Labs64 NetLicensing-MCP, published on 15 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-57496 and fix it if it is affected.\n\nWhat it is: CVE-2026-57496 is a critical path traversal vulnerability in Labs64 NetLicensing-MCP, published on 15 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-57496 exists.\n\nAffected packages and fixed versions:\n- netlicensing-mcp (PyPI): affected all versions; fixed in 0.1.8\n- netlicensing-mcp (PyPI): affected all versions; fixed in 0.1.8\n- netlicensing-mcp (PyPI): affected all versions; fixed in 0.1.8\n\nTask:\n1. 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.\n2. 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.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-57496/ (Markdown: https://insights.sbomify.com/CVE-2026-57496/index.md)","id":"CVE-2026-57496","markdown":"https://insights.sbomify.com/CVE-2026-57496/index.md","name":"CVE-2026-57496","record":{"aliases":["GHSA-hxpf-9xvq-wph8","PYSEC-2026-3489"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_read","privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"NetLicensing MCP Server","requires_auth":"low_privilege","summary":"Path traversal allows authenticated users to bypass token redaction and retrieve plaintext API keys, potentially leading to full account compromise.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":9.6,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory"}],"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.","ecosystems":["PyPI"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"NetLicensing MCP Server: REST Path Traversal Bypasses Token Redaction","id":"CVE-2026-57496","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"path_traversal","year":"2026"},"n_packages":3,"n_references":4,"next":{"headline":"webtransport-go: Memory Exhaustion Attack due to Buffering of Unknown Capsules","id":"CVE-2026-57497"},"packages":[{"ecosystem":"PyPI","fixed":["0.1.8"],"introduced":["0"],"last_affected":[],"package":"netlicensing-mcp","purl":null,"source":"GHSA-hxpf-9xvq-wph8"},{"ecosystem":"PyPI","fixed":["0.1.8"],"introduced":["0"],"last_affected":[],"package":"netlicensing-mcp","purl":"pkg:pypi/netlicensing-mcp","source":"GHSA-hxpf-9xvq-wph8"},{"ecosystem":"PyPI","fixed":["0.1.8"],"introduced":["0"],"last_affected":[],"package":"netlicensing-mcp","purl":"pkg:pypi/netlicensing-mcp","source":"PYSEC-2026-3489"}],"prev":{"headline":"AgenticMail: Unauthenticated inbound mail triggers bypassPermissions resume of the operator's Claude Code session (bridge-wake)","id":"CVE-2026-57495"},"products":["NetLicensing-MCP"],"published":"2026-10-15","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-21","vendors":["Labs64"]},"summary":"Path traversal allows authenticated users to bypass token redaction and retrieve plaintext API keys, potentially leading to full account compromise.","url":"https://insights.sbomify.com/CVE-2026-57496/"}