{"answers":{"affected":"1 open source package ship an affected version, including @galicia-toolkit/error-master.","exploited":"There is no known exploitation of MAL-2026-17689 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-2026-17689 is a malicious package in @galicia-toolkit/error-master, published on 8 Oct 2026."},"fix_prompt":"MAL-2026-17689 is a malicious package: @galicia-toolkit/error-master (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-2026-17689/ (Markdown: https://insights.sbomify.com/MAL-2026-17689/index.md)","id":"MAL-2026-17689","markdown":"https://insights.sbomify.com/MAL-2026-17689/index.md","name":"MAL-2026-17689","record":{"aliases":["GHSA-42vv-c8c8-q765"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"@galicia-toolkit/error-master@999.0.3 claims the `@galicia-toolkit` scope and describes itself as a dependency-confusion PoC. Its postinstall hook runs on npm install using `node postinstall.js || true` and sends encoded hostname, working-directory, platform, runtime-version, and username data as DNS labels to `oob.s4yhii.com`, making it a dependency-confusion probe that collects environment data. The npm account s4yhii_ published it on 2026-10-08.\n\nOn `npm install`, this package's `postinstall` script (node postinstall.js) hex-encodes the installer's hostname, current working directory, platform/arch/Node version, and USER/USERNAME/LOGNAME values, and emits DNS queries whose subdomains encode that data under the hardcoded author-controlled zone `oob.s4yhii.com`, using an authoritative resolver as an out-of-band exfiltration channel. The package name and the version number `999.0.3` are consistent with a dependency-confusion payload shape designed to win resolution against an internal `@galicia-toolkit/error-master` package. The DNS-tunnel beacon fires automatically at install time with no installer action beyond `npm install`, leaking host and user identifiers to the attacker's authoritative nameserver.\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 @galicia-toolkit/error-master (npm)","id":"MAL-2026-17689","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":"@galicia-toolkit/error-master","purl":"pkg:npm/%40galicia-toolkit/error-master","source":"MAL-2026-17689"}],"products":null,"published":"2026-10-08","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-2026-17689/"}