{"answers":{"affected":"1 open source package ship an affected version, including chai-as-sharpened.","exploited":"There is no known exploitation of MAL-2026-10045 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-2026-10045 is a malicious package in chai-as-sharpened, published on 9 Jul 2026."},"fix_prompt":"MAL-2026-10045 is a malicious package: chai-as-sharpened (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-2026-10045/ (Markdown: https://insights.sbomify.com/MAL-2026-10045/index.md)","id":"MAL-2026-10045","markdown":"https://insights.sbomify.com/MAL-2026-10045/index.md","name":"MAL-2026-10045","record":{"aliases":["GHSA-wm45-4mwq-2pg6"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"On require, the package spawns a detached background `node` process running `lib/initializeCaller.js`. That script base64-decodes a hardcoded URL (https://tomato-brunhilda-40.tiiny.site/index.json), fetches JSON from it, and executes the returned `cookie` field through `new Function.constructor('require', response)(require)` — giving the remote payload full `require` access on the installer's host. The endpoint URL and request header key/value are hidden inside base64 strings assigned to a locally-shadowed `process.env` object and decoded via `atob()` at runtime, obfuscating the C2 destination. The package additionally impersonates two well-known libraries: the name `chai-as-sharpened` mimics `chai-as-promised`, and the README badges/links point to `pino` and `pinojs/pino`, using name confusion as the delivery vector. Import triggers unconditional RCE against any consumer.","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-as-sharpened (npm)","id":"MAL-2026-10045","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-as-sharpened","purl":"pkg:npm/chai-as-sharpened","source":"MAL-2026-10045"}],"products":null,"published":"2026-07-09","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-2026-10045/"}