{"answers":{"affected":"1 open source package ship an affected version, including @wizloft/harness-kernel.","exploited":"There is no known exploitation of MAL-2026-14287 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-2026-14287 is a malicious package in @wizloft/harness-kernel, published on 19 Aug 2026."},"fix_prompt":"MAL-2026-14287 is a malicious package: @wizloft/harness-kernel (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-2026-14287/ (Markdown: https://insights.sbomify.com/MAL-2026-14287/index.md)","id":"MAL-2026-14287","markdown":"https://insights.sbomify.com/MAL-2026-14287/index.md","name":"MAL-2026-14287","record":{"aliases":["GHSA-9f63-qfxp-2726"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"dist/index.js contains an obfuscated top-level async IIFE that executes on import. It queries Ethereum JSON-RPC endpoints (eth.drpc.org, eth.publicnode.com, ethereum-rpc.publicnode.com, and an Etherscan-like API) for the most recent transaction from a hardcoded marker address (0xa322E5f39aDC2490Ef6f0121063e358050D311D3080e), parses the transaction's `to` field into two IPv4 addresses, HTTP-fetches XOR-encrypted payloads from `http://\u003cip\u003e/0x/ls` and `http://\u003cip\u003e:443/0x/cl`, XOR-decrypts them, then executes the resulting JavaScript via `eval(...)` and a detached `spawn('node', ['-e', \u003cdecrypted\u003e], {detached:true})`. The entire loader is packed with obfuscator.io-style transforms (hex `_0x` identifiers, rotating string array `_0x240a`, control-flow flattening) that conceal the network-fetch-and-exec chain behind benign-looking exports. On-chain C2 makes the exfil/RCE destination mutable and takedown-resistant; the payload contents are opaque and attacker-controlled.\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 @wizloft/harness-kernel (npm)","id":"MAL-2026-14287","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":"@wizloft/harness-kernel","purl":"pkg:npm/%40wizloft/harness-kernel","source":"MAL-2026-14287"}],"products":null,"published":"2026-08-19","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-2026-14287/"}