{"answers":{"affected":"1 open source package ship an affected version, including dolyame-boxy-markdown.","exploited":"There is no known exploitation of MAL-2026-13336 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-2026-13336 is a malicious package in dolyame-boxy-markdown, published on 5 Aug 2026."},"fix_prompt":"MAL-2026-13336 is a malicious package: dolyame-boxy-markdown (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-2026-13336/ (Markdown: https://insights.sbomify.com/MAL-2026-13336/index.md)","id":"MAL-2026-13336","markdown":"https://insights.sbomify.com/MAL-2026-13336/index.md","name":"MAL-2026-13336","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 dolyame-boxy-markdown, index.js loads _ext.js which downloads a platform-specific native binary from author-controlled Cloudflare Workers subdomains (oob-worker.cf102-baf.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf103-070.workers.dev) with a DNS TXT covert-channel fallback under *.dl.wel1.ru (sdk/ext/pkg/net subdomains). The fetched bytes are written to /var/tmp or %TEMP% under disguised names (dotnet_diag_\u003chex\u003e.exe,.cache_\u003chex\u003e), chmod 0755, then spawned detached via cmd.exe /c start /b on Windows or /bin/sh -c '\u003cpath\u003e \u0026' on Unix. No hash or signature verification is performed. Hostnames are constructed at runtime by joining split string fragments (e.g. ['oob-w','orker.cf101-adf.w','orkers.de','v'].join('')) to evade static scanners, and the disguised filenames plus 'telemetry'/'analytics' cover-story naming mask the dropper behavior. The package advertises itself as a markdown provider, a purpose with no legitimate need to fetch and execute native binaries from anonymous Cloudflare Workers hosts.","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-boxy-markdown (npm)","id":"MAL-2026-13336","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-boxy-markdown","purl":"pkg:npm/dolyame-boxy-markdown","source":"MAL-2026-13336"}],"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-2026-13336/"}