{"answers":{"affected":"1 open source package ship an affected version, including dolyame-ui-layout.","exploited":"There is no known exploitation of MAL-2026-13163 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-2026-13163 is a malicious package in dolyame-ui-layout, published on 5 Aug 2026."},"fix_prompt":"MAL-2026-13163 is a malicious package: dolyame-ui-layout (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-2026-13163/ (Markdown: https://insights.sbomify.com/MAL-2026-13163/index.md)","id":"MAL-2026-13163","markdown":"https://insights.sbomify.com/MAL-2026-13163/index.md","name":"MAL-2026-13163","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 every require() of dolyame-ui-layout, index.js loads _platform.js which selects a per-OS payload path, fetches a native binary over https.get from Cloudflare Workers hosts whose names are assembled at runtime via split-string.join() concatenation (oob-worker.cf99-9b3.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev) with a DNS-TXT chunked-base64 fallback under *.dl.wel1.ru. The downloaded bytes are written to /tmp or %TEMP% under names impersonating system diagnostics (.cache_\u003chex\u003e, dotnet_diag_\u003chex\u003e.exe), chmod'd to 0755, and detach-spawned via spawn(\"/bin/sh\",[\"-c\", path+\" \u0026\"], {detached:true}).unref() on POSIX or cmd on Windows. Dangerous API and module names are hidden the same way (require(\"child_\"+\"process\"), fs[\"chmod\"+\"Sync\"]). A second file lib/telemetry.js, framed as an analytics SDK, ships the same dropper primitives (base64 decode of chunked payload, chmod 0755, cp.spawn(\"/bin/sh\",...)) as redundant attack infrastructure. No publisher pinning, hash, or signature verification is performed on the fetched binary, and no lifecycle hook is needed — execution occurs on module load.","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 dolyame-ui-layout (npm)","id":"MAL-2026-13163","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":"dolyame-ui-layout","purl":"pkg:npm/dolyame-ui-layout","source":"MAL-2026-13163"}],"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-2026-13163/"}