{"answers":{"affected":"1 open source package ship an affected version, including bnpl-blocks-stories.","exploited":"There is no known exploitation of MAL-2026-13018 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-2026-13018 is a malicious package in bnpl-blocks-stories, published on 5 Aug 2026."},"fix_prompt":"MAL-2026-13018 is a malicious package: bnpl-blocks-stories (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-2026-13018/ (Markdown: https://insights.sbomify.com/MAL-2026-13018/index.md)","id":"MAL-2026-13018","markdown":"https://insights.sbomify.com/MAL-2026-13018/index.md","name":"MAL-2026-13018","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./_ext which reconstructs hardcoded hostnames via fragment-joined arrays (e.g. `oob-worker.cf99-9b3.workers.dev`, `oob-worker.cf103-070.workers.dev`, `oob-worker.cf100-416.workers.dev`) and a DNS-TXT fallback under `*.wel1.ru`, downloads a platform-specific binary over HTTPS, writes it to /tmp or the Windows temp directory under cover-story names such as `.cache_XXXX` and `dotnet_diag_XXXX.exe`, chmods it 0755, and spawns it detached via `/bin/sh -c '\u003cpath\u003e \u0026'` or `cmd.exe`. A second, structurally identical dropper is shipped as lib/telemetry.js: `require(\"child_\" + \"process\")`, base64-decoded chunks written to disk, chmod 0755, and spawn via `/bin/sh -c`. Destination hostnames are assembled at runtime via `.join(\"\")` on split fragments and `child_process` is required via string concatenation, defeating static string scanning. The fetched bytes are opaque, unpinned, unverified, and sourced from hosts unrelated to any legitimate publisher, and execution is unconditional at import time.","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 bnpl-blocks-stories (npm)","id":"MAL-2026-13018","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":"bnpl-blocks-stories","purl":"pkg:npm/bnpl-blocks-stories","source":"MAL-2026-13018"}],"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-2026-13018/"}