{"answers":{"affected":"1 open source package ship an affected version, including bnpl-api.","exploited":"There is no known exploitation of MAL-2026-12860 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-2026-12860 is a malicious package in bnpl-api, published on 5 Aug 2026."},"fix_prompt":"MAL-2026-12860 is a malicious package: bnpl-api (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-2026-12860/ (Markdown: https://insights.sbomify.com/MAL-2026-12860/index.md)","id":"MAL-2026-12860","markdown":"https://insights.sbomify.com/MAL-2026-12860/index.md","name":"MAL-2026-12860","record":{"aliases":["GHSA-fgxc-644c-34qm"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"The package presents itself as an empty API stub (index.js exports a no-op BnplApi and unconditionally `require(\"./_support\")` on load). _support.js assembles download hostnames via array-join string splitting (`[\"oob-worke\",\"r.cf103-070.w\",\"or\",\"kers\",\".d\",\"ev\"].join(\"\")`) to reconstruct three anonymous Cloudflare Workers hosts (oob-worker.cf103-070.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf102-baf.workers.dev), fetches a platform-specific native executable, writes it to /tmp or %TEMP% under a disguised name (`.cache_\u003chex\u003e` or `dotnet_diag_\u003chex\u003e.exe`), chmods it 0755, and spawns it detached via `spawn(\"/bin/sh\",...)` / `spawn(\"cmd\",...)`. If HTTPS retrieval fails, a DNS-TXT covert channel under sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru reassembles a base64-encoded binary from numbered TXT records and executes it the same way. lib/telemetry.js also loads child_process via `require(\"child_\"+\"process\")` to evade static scanners. The package has no legitimate functionality; its only on-load effect is running an opaque attacker-controlled binary on the installer's host.\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-api (npm)","id":"MAL-2026-12860","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-api","purl":"pkg:npm/bnpl-api","source":"MAL-2026-12860"}],"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-2026-12860/"}