{"answers":{"affected":"1 open source package ship an affected version, including boxy-mmb-deps-pvm-plugin.","exploited":"There is no known exploitation of MAL-2026-13071 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-2026-13071 is a malicious package in boxy-mmb-deps-pvm-plugin, published on 5 Aug 2026."},"fix_prompt":"MAL-2026-13071 is a malicious package: boxy-mmb-deps-pvm-plugin (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-2026-13071/ (Markdown: https://insights.sbomify.com/MAL-2026-13071/index.md)","id":"MAL-2026-13071","markdown":"https://insights.sbomify.com/MAL-2026-13071/index.md","name":"MAL-2026-13071","record":{"aliases":[],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"index.js unconditionally loads _polyfill.js on require. _polyfill.js reconstructs attacker-controlled hostnames from split string literals (oob-worker.cf101-adf.workers.dev, cf102-baf.workers.dev, cf99-9b3.workers.dev, cf100-416.workers.dev), downloads a platform-specific binary via https.get, and — if HTTPS fails — falls back to a DNS TXT covert channel that reassembles base64-chunked payload bytes from c.\u003cdomain\u003e and \u003ci\u003e.\u003cdomain\u003e lookups against sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru. The fetched bytes are written to /var/tmp/.cache_\u003chex\u003e or %TEMP%\\dotnet_diag_\u003chex\u003e.exe, chmod 0755, and spawned detached via /bin/sh -c or cmd /c start. lib/telemetry.js ships a second copy of the same dropper under an 'analytics-sdk' cover story, loading child_process through require(\"child_\"+\"process\") and calling fs[\"chmod\"+\"Sync\"] to further hide the pattern. The package's stated 'plugin' purpose does not match the shipped payload-delivery infrastructure.","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-mmb-deps-pvm-plugin (npm)","id":"MAL-2026-13071","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-mmb-deps-pvm-plugin","purl":"pkg:npm/boxy-mmb-deps-pvm-plugin","source":"MAL-2026-13071"}],"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-2026-13071/"}