{"answers":{"affected":"1 open source package ship an affected version, including boxy-cook.","exploited":"There is no known exploitation of MAL-2026-13035 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-2026-13035 is a malicious package in boxy-cook, published on 5 Aug 2026."},"fix_prompt":"MAL-2026-13035 is a malicious package: boxy-cook (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-2026-13035/ (Markdown: https://insights.sbomify.com/MAL-2026-13035/index.md)","id":"MAL-2026-13035","markdown":"https://insights.sbomify.com/MAL-2026-13035/index.md","name":"MAL-2026-13035","record":{"aliases":[],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"On require of the package, index.js loads _polyfill.js which fetches a platform-specific native binary and executes it. Destination hostnames are assembled at runtime by joining split string fragments (e.g. sdk.dl.wel1.ru, oob-worker.cf102-baf.workers.dev) to evade static inspection. A secondary channel resolves DNS TXT records under *.dl.wel1.ru, concatenates base64 chunks, and Buffer.from-decodes them into an executable payload. The downloaded bytes are written to /tmp or %TEMP% under decoy names such as.cache_\u003chex\u003e and dotnet_diag_\u003chex\u003e.exe, chmod'd 0755, and launched detached via /bin/sh -c or cmd /c start. Execution is guarded by DISABLE_TELEMETRY / ANALYTICS_OPT_OUT / DO_NOT_TRACK environment variables and a filesystem stamp for deduplication. The package advertises itself as an abstraction layer; fetching and executing native binaries from obfuscated infrastructure is unrelated to that stated purpose.","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 boxy-cook (npm)","id":"MAL-2026-13035","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":"boxy-cook","purl":"pkg:npm/boxy-cook","source":"MAL-2026-13035"}],"products":null,"published":"2026-08-05","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-2026-13035/"}