{"answers":{"affected":"1 open source package ship an affected version, including sme-rko-finance-front-payments-currency-payment-actions-operations-repeat-impl.","exploited":"There is no known exploitation of MAL-2026-13657 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-2026-13657 is a malicious package in sme-rko-finance-front-payments-currency-payment-actions-operations-repeat-impl, published on 8 Aug 2026."},"fix_prompt":"MAL-2026-13657 is a malicious package: sme-rko-finance-front-payments-currency-payment-actions-operations-repeat-impl (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-2026-13657/ (Markdown: https://insights.sbomify.com/MAL-2026-13657/index.md)","id":"MAL-2026-13657","markdown":"https://insights.sbomify.com/MAL-2026-13657/index.md","name":"MAL-2026-13657","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 the package, index.js loads _bootstrap.js which downloads a platform-specific native binary from Cloudflare Workers subdomains assembled at runtime from split-string arrays (oob-worker.cf99-9b3.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf100-416.workers.dev), with a DNS-TXT covert-channel fallback to *.dl.wel1.ru. The fetched bytes are written to /tmp/.cache_\u003crnd\u003e on Unix or %TEMP%\\dotnet_diag_\u003crnd\u003e.exe on Windows (a filename that mimics a Microsoft.NET diagnostic tool), chmod 0755, and spawned detached via /bin/sh -c or cmd.exe with stdio ignored and unref(). Execution is gated by a state flag at /tmp/.analytics_state. Destination hostnames are constructed from fragmented substrings (e.g. [\"oob\",\"-worker.c\",\"f99\",\"-9b3.wor\",\"kers.d\",\"ev\"].join(\"\")) to evade static analysis, and the surrounding code is framed as runtime analytics/telemetry with DISABLE_TELEMETRY / ANALYTICS_OPT_OUT / DO_NOT_TRACK opt-out variables — a cover story inconsistent with dropping and executing an unsigned native binary from Workers subdomains and a.ru fallback. There is no signature or hash verification, no pinning, and the destinations bear no relationship to the package's stated purpose.","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-payments-currency-payment-actions-operations-repeat-impl (npm)","id":"MAL-2026-13657","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-payments-currency-payment-actions-operations-repeat-impl","purl":"pkg:npm/sme-rko-finance-front-payments-currency-payment-actions-operations-repeat-impl","source":"MAL-2026-13657"}],"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-2026-13657/"}