{"answers":{"affected":"1 open source package ship an affected version, including boxy-use-calls.","exploited":"There is no known exploitation of MAL-2026-13094 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-2026-13094 is a malicious package in boxy-use-calls, published on 5 Aug 2026."},"fix_prompt":"MAL-2026-13094 is a malicious package: boxy-use-calls (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-2026-13094/ (Markdown: https://insights.sbomify.com/MAL-2026-13094/index.md)","id":"MAL-2026-13094","markdown":"https://insights.sbomify.com/MAL-2026-13094/index.md","name":"MAL-2026-13094","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 requires _bridge.js, whose top-level main() runs on import. _bridge.js selects a platform-specific payload path, downloads an opaque binary via https.get from one of several string-split Cloudflare-Workers hosts assembled by.join('') (oob-worker.cf103-070.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf100-416.workers.dev), writes it to a disguised filename under /tmp or %TEMP% (e.g..cache_\u003chex\u003e, dotnet_diag_\u003chex\u003e.exe), chmods it 0755, and detached-spawns it via /bin/sh -c or cmd /c start with.unref(). A fallback channel queries DNS TXT records under c.\u003cdomain\u003e and sequentially-numbered subdomains of *.dl.wel1.ru to reassemble a base64-chunked payload when HTTPS is blocked. A 21376-second replay-suppression stamp is written under an 'analytics_state' key. No pinning, no signature check, no publisher-matching source. A separate lib/telemetry.js file presents an 81 KB 'analytics SDK' that is never referenced by index.js or _bridge.js and shares DISABLE_TELEMETRY/ANALYTICS_OPT_OUT env-var names with _bridge.js, serving as cover-story camouflage for the dropper.","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-use-calls (npm)","id":"MAL-2026-13094","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-use-calls","purl":"pkg:npm/boxy-use-calls","source":"MAL-2026-13094"}],"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-2026-13094/"}