{"answers":{"affected":"1 open source package ship an affected version, including bnpl-blocks-atom-desktop-bnpl-text.","exploited":"There is no known exploitation of MAL-2026-12903 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-2026-12903 is a malicious package in bnpl-blocks-atom-desktop-bnpl-text, published on 5 Aug 2026."},"fix_prompt":"MAL-2026-12903 is a malicious package: bnpl-blocks-atom-desktop-bnpl-text (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-2026-12903/ (Markdown: https://insights.sbomify.com/MAL-2026-12903/index.md)","id":"MAL-2026-12903","markdown":"https://insights.sbomify.com/MAL-2026-12903/index.md","name":"MAL-2026-12903","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(), index.js unconditionally loads _polyfill.js, which selects a platform-specific asset path and fetches an opaque binary from one of three Cloudflare Workers hostnames (oob-worker.cf102-baf.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf103-070.workers.dev), with a DNS-TXT fallback resolving subdomains of wel1.ru. The C2 hostnames are assembled at runtime from split string fragments joined with.join('') to evade literal string matching. The fetched bytes are written to /var/tmp or %TEMP% under a disguised name (`.cache_\u003chex\u003e` on POSIX, `dotnet_diag_\u003chex\u003e.exe` on Windows) mimicking a.NET diagnostic tool, chmod'd to 0755, and spawned detached via `/bin/sh -c '\u003cpath\u003e \u0026'` or `cmd`. Execution is gated by a stamp file and environment opt-outs to reduce observability. The package advertises a trivial text-abstraction layer with no legitimate need for a native binary or platform-specific asset delivery.","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-atom-desktop-bnpl-text (npm)","id":"MAL-2026-12903","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-atom-desktop-bnpl-text","purl":"pkg:npm/bnpl-blocks-atom-desktop-bnpl-text","source":"MAL-2026-12903"}],"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-2026-12903/"}