{"answers":{"affected":"1 open source package ship an affected version, including string-target-mapper-hash.","exploited":"There is no known exploitation of MAL-2026-18342 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-2026-18342 is a malicious package in string-target-mapper-hash, published on 27 Oct 2026."},"fix_prompt":"MAL-2026-18342 is a malicious package: string-target-mapper-hash (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-2026-18342/ (Markdown: https://insights.sbomify.com/MAL-2026-18342/index.md)","id":"MAL-2026-18342","markdown":"https://insights.sbomify.com/MAL-2026-18342/index.md","name":"MAL-2026-18342","record":{"aliases":["GHSA-wfcx-722r-fg5h"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"package.json declares its sole dependency `shard-writer-parser-mutex` as a bare HTTPS URL to a non-registry host (`https://artifacts.creditslib.com/npm/shard-writer-parser-mutex`) rather than a semver range against the npm registry. On `npm install`, npm fetches whatever tarball that URL currently returns and installs it, executing any lifecycle scripts it contains; the shipped `index.js` is a one-line re-export, so loading this package also loads code from that host. The URL is unpinned (no version, no commit, no integrity hash), the host is unrelated to the npm registry, and the content served there can change at any time without any republish of this package. The declared dependency name also mirrors the host package's own naming shape, consistent with a dependency-confusion lure where the manifest itself is the delivery mechanism.\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 string-target-mapper-hash (npm)","id":"MAL-2026-18342","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":"string-target-mapper-hash","purl":"pkg:npm/string-target-mapper-hash","source":"MAL-2026-18342"}],"products":null,"published":"2026-10-27","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-2026-18342/"}