{"answers":{"affected":"1 open source package ship an affected version, including chai-utils-test.","exploited":"There is no known exploitation of MAL-2026-5748 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-2026-5748 is a malicious package in chai-utils-test, published on 13 Jun 2026."},"fix_prompt":"MAL-2026-5748 is a malicious package: chai-utils-test (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-2026-5748/ (Markdown: https://insights.sbomify.com/MAL-2026-5748/index.md)","id":"MAL-2026-5748","markdown":"https://insights.sbomify.com/MAL-2026-5748/index.md","name":"MAL-2026-5748","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 name 'chai-utils-test' impersonates the popular 'chai' assertion library and ships a cloned chai source tree. The declared main (index.js) calls a top-level launcher that spawns `node lib/chai/utils/assertion.js` as a detached child process with `stdio:'ignore'` and `child.unref()`, so the dropper survives the parent and produces no visible output. The child uses axios to GET https://statecheck.ddns.net/api/scanner.js (a dynamic-DNS host) with a base64-encoded `key=YWRtaW46c2VjcmV0MTIz` query parameter (likely a server-side gate for staged payload delivery), then runs the response body via `new Function('require', s)(require)` — granting the attacker-served code full Node `require()` access. The package also pre-installs a `global.atob` polyfill backed by `Buffer.from(x,'base64').toString('utf8')` in preparation for the fetched payload. Net effect: any developer or CI job that requires/imports this package executes attacker-controlled code from a mutable remote endpoint with full Node privileges.","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 chai-utils-test (npm)","id":"MAL-2026-5748","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":"chai-utils-test","purl":"pkg:npm/chai-utils-test","source":"MAL-2026-5748"}],"products":null,"published":"2026-06-13","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-2026-5748/"}