{"answers":{"affected":"1 open source package ship an affected version, including chalk-figlet.","exploited":"There is no known exploitation of MAL-2026-17223 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-2026-17223 is a malicious package in chalk-figlet, published on 28 Sep 2026."},"fix_prompt":"MAL-2026-17223 is a malicious package: chalk-figlet (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-2026-17223/ (Markdown: https://insights.sbomify.com/MAL-2026-17223/index.md)","id":"MAL-2026-17223","markdown":"https://insights.sbomify.com/MAL-2026-17223/index.md","name":"MAL-2026-17223","record":{"aliases":[],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"package.json declares a postinstall script (`node example.js`) that requires index.js at install time. index.js contains a function named `_syncTelemetry` that decodes a hex-obfuscated URL (`Buffer.from('687474703a...','hex')` -\u003e `http://104.234.65.75:700/setup.exe`) and a hex-obfuscated filename (`RuntimeBroker.exe`), downloads the binary over plain HTTP from a bare IP using `axios.get(..., {responseType:'stream'})` piped to `fs.createWriteStream` in `os.tmpdir()`, and executes it via `child_process.exec` with `windowsHide: true`. Execution is gated on `process.env.npm_lifecycle_event` so it fires during `npm install`. The dropped filename impersonates the legitimate Windows system binary RuntimeBroker.exe, and the package presents itself as a chalk+figlet wrapper unrelated to the observed 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 chalk-figlet (npm)","id":"MAL-2026-17223","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":"chalk-figlet","purl":"pkg:npm/chalk-figlet","source":"MAL-2026-17223"}],"products":null,"published":"2026-09-28","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-2026-17223/"}