{"answers":{"affected":"1 open source package ship an affected version, including tailwind-form-kit.","exploited":"There is no known exploitation of MAL-2026-16139 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-2026-16139 is a malicious package in tailwind-form-kit, published on 11 Sep 2026."},"fix_prompt":"MAL-2026-16139 is a malicious package: tailwind-form-kit (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-2026-16139/ (Markdown: https://insights.sbomify.com/MAL-2026-16139/index.md)","id":"MAL-2026-16139","markdown":"https://insights.sbomify.com/MAL-2026-16139/index.md","name":"MAL-2026-16139","record":{"aliases":["GHSA-8p5f-pjcw-69mw"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"The package presents itself as a Tailwind CSS forms plugin but its main entry src/index.js is a heavily obfuscated module (obfuscator.io-style rotating string array with 303 entries, hex identifiers, control-flow dispatchers) that on require/import dynamically loads node:http, node:https, node:zlib, and node:child_process via createRequire and stashes them on the global object. On module load it issues POST requests carrying a custom x-payload-* header and a spoofed Chrome/Windows User-Agent to a hardcoded blockchain indexer (etherscan/blockscout-style) and to public Ethereum RPC providers (publicnode.com, drpc.org, 1rpc.io, eth-mainnet), reading process.env.ETH_RPC_URL to augment the RPC list, and references a hardcoded Ethereum sender address. None of this behavior is disclosed and none of it corresponds to a Tailwind CSS forms plugin; the repository field also impersonates tailwindlabs. The combination of heavy obfuscation, dynamic-require caching on global, spawn availability, and unsolicited outbound blockchain network I/O at library-load is a covert import-time channel unrelated to the advertised purpose.\n\nAny computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.","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 tailwind-form-kit (npm)","id":"MAL-2026-16139","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":["0"],"last_affected":[],"package":"tailwind-form-kit","purl":"pkg:npm/tailwind-form-kit","source":"MAL-2026-16139"}],"products":null,"published":"2026-09-11","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-2026-16139/"}