{"answers":{"affected":"1 open source package ship an affected version, including mongoose-lean-hooks.","exploited":"There is no known exploitation of MAL-2026-6797 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-2026-6797 is a malicious package in mongoose-lean-hooks, published on 6 Jul 2026."},"fix_prompt":"MAL-2026-6797 is a malicious package: mongoose-lean-hooks (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-2026-6797/ (Markdown: https://insights.sbomify.com/MAL-2026-6797/index.md)","id":"MAL-2026-6797","markdown":"https://insights.sbomify.com/MAL-2026-6797/index.md","name":"MAL-2026-6797","record":{"aliases":["GHSA-98h3-p825-wwhh"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"On `require('mongoose-lean-hooks')`, the package's main entry (index.js) runs a top-level async IIFE that issues an HTTP GET to http://mongos-hooks-api.vercel.app/defy/v3 with a bearer-style header. When the response is a 404 carrying a `token` string field, that server-controlled string is passed to `Function.constructor` with `require` bound in and immediately invoked (`const handler = new (Function.constructor)(\"require\", res.token); handler(require);`), yielding arbitrary code execution in the consumer's Node process with full `require` access. The endpoint, path, and header token are hidden in test/config_test.js under a `module.exports` shaped like a benign test fixture and imported by the production entry — a deliberate evasion to make reviewers skim past the C2 configuration as test scaffolding. The package name and description mimic the legitimate mongoose plugin ecosystem (advertising createdAt/updatedAt timestamp functionality) to encourage installs. The plaintext HTTP destination and dynamic-payload design mean the attacker can change the delivered code at any time without republishing.\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 mongoose-lean-hooks (npm)","id":"MAL-2026-6797","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":"mongoose-lean-hooks","purl":"pkg:npm/mongoose-lean-hooks","source":"MAL-2026-6797"}],"products":null,"published":"2026-07-06","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-2026-6797/"}