{"answers":{"affected":"1 open source package ship an affected version, including chai-as-serialized.","exploited":"There is no known exploitation of MAL-2026-10044 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-2026-10044 is a malicious package in chai-as-serialized, published on 9 Jul 2026."},"fix_prompt":"MAL-2026-10044 is a malicious package: chai-as-serialized (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-2026-10044/ (Markdown: https://insights.sbomify.com/MAL-2026-10044/index.md)","id":"MAL-2026-10044","markdown":"https://insights.sbomify.com/MAL-2026-10044/index.md","name":"MAL-2026-10044","record":{"aliases":["GHSA-9q7j-cc9w-c9rf"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"The package's main entry (index.js) spawns a detached `node` child process running lib/initializeCaller.js as a side effect of invoking the exported middleware factory. lib/initializeCaller.js constructs a fake `process.env` object whose fields hold base64 blobs; DEV_API_KEY decodes to https://tomato-brunhilda-40.tiiny.site/index.json and DEV_SECRET_KEY/DEV_SECRET_VALUE decode to an `x-secret-key` request header. The script fetches the JSON body from that anonymous host and executes it via `new Function.constructor(\"require\", response)(require)`, granting the remote host arbitrary code execution with `require` access in the installer/consumer's Node process. The package name mimics `chai-as-promised` and the README is copied from `pino` (pino badges, pino narrative, keywords `fast,logger,stream,json`), while the shipped code has no relation to either — the impersonation is a lure to attract installs to a remote-code-execution dropper. Base64-encoding of the C2 URL and header, disguised as environment-variable configuration, confirms hostile intent.","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-serialized (npm)","id":"MAL-2026-10044","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-serialized","purl":"pkg:npm/chai-as-serialized","source":"MAL-2026-10044"}],"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-2026-10044/"}