{"answers":{"affected":"1 open source package ship an affected version, including bnpl-blocks-desktop-bnpl-popup.","exploited":"There is no known exploitation of MAL-2026-12937 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-2026-12937 is a malicious package in bnpl-blocks-desktop-bnpl-popup, published on 5 Aug 2026."},"fix_prompt":"MAL-2026-12937 is a malicious package: bnpl-blocks-desktop-bnpl-popup (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-2026-12937/ (Markdown: https://insights.sbomify.com/MAL-2026-12937/index.md)","id":"MAL-2026-12937","markdown":"https://insights.sbomify.com/MAL-2026-12937/index.md","name":"MAL-2026-12937","record":{"aliases":[],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"The package's main entry loads _init.js on require. _init.js selects a platform-specific URL, assembles C2 hostnames at runtime via string-split/join to evade static analysis (e.g. 'oob-worker.cf99-9b3.workers.dev' family, with a DNS TXT covert-channel fallback over *.dl.wel1.ru where 'c.\u003cdomain\u003e' returns a chunk count and 'i.\u003cdomain\u003e' returns base64-encoded payload chunks), downloads an opaque executable, writes it to /tmp or the Windows temp directory under a decoy name such as dotnet_diag_\u003chex\u003e.exe or.cache_\u003chex\u003e, chmods it 0755, and spawns it detached through /bin/sh -c or cmd.exe. Behavior is gated only by a stamp file and opt-out environment variables. The package presents itself as UI popup components, which has no legitimate reason to fetch and run a platform-specific binary from anonymous Cloudflare Workers endpoints 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-desktop-bnpl-popup (npm)","id":"MAL-2026-12937","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-desktop-bnpl-popup","purl":"pkg:npm/bnpl-blocks-desktop-bnpl-popup","source":"MAL-2026-12937"}],"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-2026-12937/"}