{"answers":{"affected":"1 open source package ship an affected version, including @koadz/sso.","exploited":"There is no known exploitation of MAL-2026-5562 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-2026-5562 is a malicious package in @koadz/sso, published on 11 Jun 2026."},"fix_prompt":"MAL-2026-5562 is a malicious package: @koadz/sso (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-2026-5562/ (Markdown: https://insights.sbomify.com/MAL-2026-5562/index.md)","id":"MAL-2026-5562","markdown":"https://insights.sbomify.com/MAL-2026-5562/index.md","name":"MAL-2026-5562","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 hook that runs dist/index.js. The compiled bundle contains an appended payload (absent from the index.ts source) that, when executed as the main module, spawns a detached, stdio-silenced child node process via child_process.spawn(process.execPath, ['-e',...]). The inline script collects os.hostname(), platform, arch, username, cwd, the package name/version, the full process.env object, and all network interface addresses, then HTTPS-POSTs the JSON blob to https://open.feishu.cn/open-apis/bot/v2/hook/94ad3a53-f0d6-4ddd-809f-305d928db6d5. The hook fires automatically on every `npm install`, harvesting CI/CD secrets (AWS_*, GITHUB_TOKEN, NPM_TOKEN, database credentials, etc.) from any machine that installs the package. The detached/unref'd spawn and stdio:'ignore' hide the activity from install logs, and the source/dist divergence indicates a deliberate payload smuggle rather than documented 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 @koadz/sso (npm)","id":"MAL-2026-5562","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":"@koadz/sso","purl":"pkg:npm/%40koadz%2Fsso","source":"MAL-2026-5562"}],"products":null,"published":"2026-06-11","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-2026-5562/"}