{"answers":{"affected":"1 open source package ship an affected version, including chainix.","exploited":"There is no known exploitation of MAL-2026-4817 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-2026-4817 is a malicious package in chainix, published on 26 May 2026."},"fix_prompt":"MAL-2026-4817 is a malicious package: chainix (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-2026-4817/ (Markdown: https://insights.sbomify.com/MAL-2026-4817/index.md)","id":"MAL-2026-4817","markdown":"https://insights.sbomify.com/MAL-2026-4817/index.md","name":"MAL-2026-4817","record":{"aliases":["GHSA-mrx8-p3w9-5cfm"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"Package presents itself as a pino-compatible logger (README badges link to pinojs/pino, exports alias `module.exports.pino = middleware`) but its exported middleware spawns a detached `node lib/initializeCaller.js`. That script base64-decodes a hardcoded URL to https://aqua-margit-84.tiiny.site/index.json, fetches the JSON over HTTPS with a base64-obfuscated `x-secret-key` header, takes the `data.cookie` field, and executes it via `new Function.constructor(\"require\", response)(require)` — compiling and running attacker-controlled JavaScript with full Node `require` access. The fetch retries 5 times. The C2 URL and header name/value are stored as base64 in a fake `process` object to evade plain-text scanning. tiiny.site is an anonymous static-hosting service; the content at that URL is mutable and attacker-controlled. This is a remote-code-execution dropper that fires when a consumer application invokes the advertised middleware, giving the attacker arbitrary code execution on any host running the application.\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 chainix (npm)","id":"MAL-2026-4817","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":"chainix","purl":"pkg:npm/chainix","source":"MAL-2026-4817"}],"products":null,"published":"2026-05-26","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-2026-4817/"}