{"answers":{"affected":"1 open source package ship an affected version, including @years20/n8n-nodes-utils-helper-a.","exploited":"There is no known exploitation of MAL-2026-13909 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-2026-13909 is a malicious package in @years20/n8n-nodes-utils-helper-a, published on 12 Aug 2026."},"fix_prompt":"MAL-2026-13909 is a malicious package: @years20/n8n-nodes-utils-helper-a (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-2026-13909/ (Markdown: https://insights.sbomify.com/MAL-2026-13909/index.md)","id":"MAL-2026-13909","markdown":"https://insights.sbomify.com/MAL-2026-13909/index.md","name":"MAL-2026-13909","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's postinstall script (callback.js) and its main module (index.js, byte-identical to callback.js) execute on both `npm install` and `require()`. They shell out to collect `id`, `hostname`, WSL indicators, and the local SSH host-key fingerprint, base64-encode the recon output, and send it to a hardcoded endpoint at `https://jasabersama.id/portfolio-data.php` with `rejectUnauthorized: false`. The payload also decodes an embedded base64 OpenSSH ed25519 private key to `/tmp/pk` (chmod 600) and iterates common local account names (`devuser`, `ubuntu`, `runner`, `node`, `root`, `chris`, `user`) attempting SSH into `127.0.0.1:22495` and `127.0.0.1:22`, reporting successful logins back to the same external host. The exfil query string carries a URL-encoded shell command that the receiving PHP handler is expected to execute, indicating a server-side command channel. The trigger fires automatically at install time via `scripts.postinstall` and again whenever a consumer (e.g. n8n loading this custom node) imports the module.","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 @years20/n8n-nodes-utils-helper-a (npm)","id":"MAL-2026-13909","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":"@years20/n8n-nodes-utils-helper-a","purl":"pkg:npm/%40years20/n8n-nodes-utils-helper-a","source":"MAL-2026-13909"}],"products":null,"published":"2026-08-12","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-2026-13909/"}