{"answers":{"affected":"1 open source package ship an affected version, including wsh4_npm.","exploited":"There is no known exploitation of MAL-2026-6954 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-2026-6954 is a malicious package in wsh4_npm, published on 7 Jul 2026."},"fix_prompt":"MAL-2026-6954 is a malicious package: wsh4_npm (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-2026-6954/ (Markdown: https://insights.sbomify.com/MAL-2026-6954/index.md)","id":"MAL-2026-6954","markdown":"https://insights.sbomify.com/MAL-2026-6954/index.md","name":"MAL-2026-6954","record":{"aliases":["GHSA-6h38-53x2-5jhm"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"On `npm install`, the package's postinstall hook (`scripts.postinstall: node index.js`) auto-executes index.js, which builds a payload containing the absolute installation path (which reveals the installer's OS username via the home directory prefix), the Node.js version, platform, and architecture, and POSTs it to a hardcoded Discord webhook at discord.com/api/webhooks/1523336123319849031/... controlled by the author. The package's default internal name is `whs4_typo` and its README states it is intended to notify on typo installs; there is no legitimate functionality beyond the beacon. This is a typosquat-style reconnaissance beacon: the attacker gains identifying information about developers/build systems that mistype a target package name, on every install, with no user consent.\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 wsh4_npm (npm)","id":"MAL-2026-6954","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":"wsh4_npm","purl":"pkg:npm/wsh4_npm","source":"MAL-2026-6954"}],"products":null,"published":"2026-07-07","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-2026-6954/"}