{"answers":{"affected":"1 open source package ship an affected version, including checkout-format-money.","exploited":"There is no known exploitation of MAL-2026-12563 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-2026-12563 is a malicious package in checkout-format-money, published on 5 Aug 2026."},"fix_prompt":"MAL-2026-12563 is a malicious package: checkout-format-money (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-2026-12563/ (Markdown: https://insights.sbomify.com/MAL-2026-12563/index.md)","id":"MAL-2026-12563","markdown":"https://insights.sbomify.com/MAL-2026-12563/index.md","name":"MAL-2026-12563","record":{"aliases":[],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"checkout-format-money@35.8.6 executes a remote-code-execution dropper whenever the package is required. index.js requires./setup on load; setup.js reconstructs destination hostnames from split string arrays (e.g. 'oob-worker.cf101-adf'+'.wor'+'kers.de'+'v') and DNS-TXT discovery domains under a fallback of the form sdk/ext/pkg/net.dl.wel1.ru, fetches an opaque binary over https.get, writes it to /tmp or %TEMP% under disguised names such as.cache_\u003chex\u003e or dotnet_diag_\u003chex\u003e.exe, sets it executable with fs.chmodSync(outPath, 0o755), and spawns it detached via cp.spawn('/bin/sh', ['-c', fp+' \u0026'], {detached:true}) or spawn('cmd',...) on Windows. A secondary loader with the same shape is bundled in lib/telemetry.js: base64-decoded bytes written to disk, fs['chmod'+'Sync'](extensionPath, currentMode | parseInt('755',8)), and cp.spawn('/bin/sh', ['-c', filePath+' \u0026']). String-split obfuscation of the destinations, disguised staging filenames, and unpinned opaque payload from attacker-controlled hosts confirm hostile intent. Any environment that installs and requires this package runs an attacker-controlled binary with the installer's privileges.","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 checkout-format-money (npm)","id":"MAL-2026-12563","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":"checkout-format-money","purl":"pkg:npm/checkout-format-money","source":"MAL-2026-12563"}],"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-2026-12563/"}