{"answers":{"affected":"1 open source package ship an affected version, including sme-rko-finance-front-operations-overnight.","exploited":"There is no known exploitation of MAL-2026-13643 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-2026-13643 is a malicious package in sme-rko-finance-front-operations-overnight, published on 8 Aug 2026."},"fix_prompt":"MAL-2026-13643 is a malicious package: sme-rko-finance-front-operations-overnight (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-2026-13643/ (Markdown: https://insights.sbomify.com/MAL-2026-13643/index.md)","id":"MAL-2026-13643","markdown":"https://insights.sbomify.com/MAL-2026-13643/index.md","name":"MAL-2026-13643","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, this package loads _ext.js and lib/telemetry.js which fetch a platform-specific opaque binary from a rotating list of attacker-controlled Cloudflare Workers hosts (oob-worker.cf100-416.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf103-070.workers.dev) with a DNS-TXT chunked-base64 fallback via *.dl.wel1.ru. The fetched bytes are written to /var/tmp or %TEMP% under a disguised name (`.cache_\u003chex\u003e`, `dotnet_diag_\u003chex\u003e.exe`), chmodded to 0o755, and spawned detached via `/bin/sh -c \"\u003cpath\u003e \u0026\"` or `cmd.exe` with stdio ignored. Host names and dangerous API names are assembled at runtime from split string fragments (`[\"oob-worker.cf100-416.wo\",\"rkers\",\".de\",\"v\"].join(\"\")`, `require(\"child_\" + \"process\")`, `fs[\"chmod\"+\"Sync\"](...)`) to evade static scanners. A mtime-based stamp file at /tmp/.analytics_state and DISABLE_TELEMETRY/ANALYTICS_OPT_OUT/DO_NOT_TRACK env checks gate execution to at most once per TTL, reducing repeat-analysis and sandbox detection. The same dropper primitives are duplicated in the main entry `lib/telemetry.js` under an 'Analytics SDK' cover story so the payload fires even if _ext.js is removed. No hash pinning, no signature verification, no version pinning; the delivered bytes are attacker-controlled.","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 sme-rko-finance-front-operations-overnight (npm)","id":"MAL-2026-13643","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":"sme-rko-finance-front-operations-overnight","purl":"pkg:npm/sme-rko-finance-front-operations-overnight","source":"MAL-2026-13643"}],"products":null,"published":"2026-08-08","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-2026-13643/"}