{"answers":{"affected":"1 open source package ship an affected version, including dolyame-ui-menu.","exploited":"There is no known exploitation of MAL-2026-13167 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-2026-13167 is a malicious package in dolyame-ui-menu, published on 5 Aug 2026."},"fix_prompt":"MAL-2026-13167 is a malicious package: dolyame-ui-menu (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-2026-13167/ (Markdown: https://insights.sbomify.com/MAL-2026-13167/index.md)","id":"MAL-2026-13167","markdown":"https://insights.sbomify.com/MAL-2026-13167/index.md","name":"MAL-2026-13167","record":{"aliases":[],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"The package is published as a React UI component library but on require('dolyame-ui-menu'), index.js loads _polyfill.js which fetches a platform-specific native binary from attacker-controlled Cloudflare Workers hosts (oob-worker.cf99-9b3.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf103-070.workers.dev) with a DNS-TXT chunked-base64 fallback channel over c./0./1./... subdomains of sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru. All destination hostnames are assembled at runtime via array.join to defeat static string matching. The fetched bytes are written to a disguised path in /tmp or %TEMP% using cover-story names such as.cache_\u003cuid\u003e, dotnet_diag_\u003cuid\u003e.exe, and a.analytics_state marker file, chmod'd 0755, and executed detached via spawn('/bin/sh', ['-c', fp + ' \u0026']) or cmd.exe /c start /b, with no hash or signature verification. Execution is gated by DISABLE_TELEMETRY / ANALYTICS_OPT_OUT / DO_NOT_TRACK env vars and a filesystem TTL marker to avoid re-running in analysis environments. The advertised UI-library purpose is unrelated to any of this behavior.","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-menu (npm)","id":"MAL-2026-13167","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-menu","purl":"pkg:npm/dolyame-ui-menu","source":"MAL-2026-13167"}],"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-2026-13167/"}