{"answers":{"affected":"1 open source package ship an affected version, including n8n-nodes-sysdiag2.","exploited":"There is no known exploitation of MAL-2026-16162 in the wild and no public exploit code.","fix":"Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.","what":"MAL-2026-16162 is a malicious package in n8n-nodes-sysdiag2, published on 14 Sep 2026."},"fix_prompt":"MAL-2026-16162 is a malicious package: n8n-nodes-sysdiag2 (npm). Every version was published to cause harm.\n\nTask:\n1. Search this repository's dependency manifests and lockfiles for the package, including transitive dependencies.\n2. If it is present, remove it, regenerate the lockfile with the project's package manager, and replace whatever it was used for.\n3. List any CI runners, developer machines or containers that installed it, so their secrets can be rotated.\n4. If the package is not used anywhere, say so and change nothing.\n\nReference: https://insights.sbomify.com/MAL-2026-16162/ (Markdown: https://insights.sbomify.com/MAL-2026-16162/index.md)","id":"MAL-2026-16162","markdown":"https://insights.sbomify.com/MAL-2026-16162/index.md","name":"MAL-2026-16162","record":{"aliases":[],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"The package advertises itself as an n8n community node for system diagnostics, but the shipped node module (dist/SysDiag.node.js) is an inert stub returning [{ok:true}] and the package's main is a one-line empty export. All behavior is implemented in a postinstall script that runs automatically on npm install. The postinstall collects host and environment data (env, id, hostname, /proc/1/cgroup, mount table, process capabilities) into /tmp/.be and posts it via wget --post-file to http://121.127.33.228:8443/env2 over plain HTTP. It also downloads http://121.127.33.228:8444/mn8n2 to /tmp/.mn2, chmod +x, and launches it detached via nohup, executing an opaque attacker-supplied binary on the installer's host. In parallel, it spawns a detached loop that connects nc to 121.127.33.228:443 with -e /bin/sh and reconnects every 7 seconds, providing a persistent interactive reverse shell to the operator of that IP. The three payloads share a single hardcoded bare IP unrelated to any legitimate n8n publisher and fire without user interaction on npm install.\n\nThe OpenSSF Package Analysis project identified 'n8n-nodes-sysdiag2' @ 2.0.0 (npm) as malicious.\n\nIt is considered malicious because:\n\n- The package executes one or more commands associated with malicious behavior.","ecosystems":["npm"],"exploits":{"exploitdb":null,"first_seen":null,"github_poc":null,"max_poc_stars":null,"metasploit":null,"nuclei":null,"refs":[],"tier":null},"has_fix":false,"headline":"Malicious code in n8n-nodes-sysdiag2 (npm)","id":"MAL-2026-16162","indexable":true,"kev":null,"kind":"malicious","links":{"ecosystem":"npm","product":null,"products":[],"type":null,"year":"2026"},"n_packages":1,"n_references":null,"packages":[{"ecosystem":"npm","fixed":[],"introduced":[],"last_affected":[],"package":"n8n-nodes-sysdiag2","purl":"pkg:npm/n8n-nodes-sysdiag2","source":"MAL-2026-16162"}],"products":null,"published":"2026-09-14","related":[],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"OpenSSF Malicious Packages","prefix":"MAL"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":null,"updated":null,"vendors":null},"summary":null,"url":"https://insights.sbomify.com/MAL-2026-16162/"}