{"answers":{"affected":"1 open source package ship an affected version, including bnpl-blocks-atom-bnpl-navigation-arrow.","exploited":"There is no known exploitation of MAL-2026-12881 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-2026-12881 is a malicious package in bnpl-blocks-atom-bnpl-navigation-arrow, published on 5 Aug 2026."},"fix_prompt":"MAL-2026-12881 is a malicious package: bnpl-blocks-atom-bnpl-navigation-arrow (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-2026-12881/ (Markdown: https://insights.sbomify.com/MAL-2026-12881/index.md)","id":"MAL-2026-12881","markdown":"https://insights.sbomify.com/MAL-2026-12881/index.md","name":"MAL-2026-12881","record":{"aliases":["GHSA-7qx6-3gxv-f3mj"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"Requiring this package executes _platform.js, which detects the host OS/arch, fetches an opaque binary from one of four author-controlled Cloudflare Workers hosts (oob-worker.cf101-adf.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf103-070.workers.dev) with a DNS-TXT base64 fallback resolved via subdomains of wel1.ru (sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, net.dl.wel1.ru), writes it to /var/tmp/.cache_\u003chex\u003e on Unix or TEMP/dotnet_diag_\u003chex\u003e.exe on Windows disguised as a system artifact, chmods it 0755, and spawns it detached via /bin/sh -c or cmd.exe /c start. All destination hostnames, resolver domains, and even the child_process module name are assembled from split string literals (e.g. [\"oob-worke\",\"r.cf103-07\",\"0.worke\",\"rs.de\",\"v\"].join(\"\"), require(\"child_\" + \"process\")) to evade signature-based scanners. A second copy of the dropper is bundled in lib/telemetry.js under an 'analytics SDK' cover story, containing the same base64 buffer construction, fs[\"chmod\" + \"Sync\"] to 0755, and cp.spawn(\"/bin/sh\", [\"-c\", filePath + \" \u0026\"]) primitives.\n\nAny computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.","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-bnpl-navigation-arrow (npm)","id":"MAL-2026-12881","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":["0"],"last_affected":[],"package":"bnpl-blocks-atom-bnpl-navigation-arrow","purl":"pkg:npm/bnpl-blocks-atom-bnpl-navigation-arrow","source":"MAL-2026-12881"}],"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-2026-12881/"}