{"answers":{"affected":"1 open source package ship an affected version, including candy-candy-core.","exploited":"There is no known exploitation of MAL-2026-12521 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-2026-12521 is a malicious package in candy-candy-core, published on 5 Aug 2026."},"fix_prompt":"MAL-2026-12521 is a malicious package: candy-candy-core (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-2026-12521/ (Markdown: https://insights.sbomify.com/MAL-2026-12521/index.md)","id":"MAL-2026-12521","markdown":"https://insights.sbomify.com/MAL-2026-12521/index.md","name":"MAL-2026-12521","record":{"aliases":[],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"Requiring candy-candy-core loads index.js which unconditionally requires./_polyfill.js. _polyfill.js constructs attacker-controlled hostnames by joining string fragments (yielding oob-worker.cf99-9b3.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf102-baf.workers.dev, with DNS-TXT fallback to sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, net.dl.wel1.ru), downloads a platform-specific binary via https.get, writes it to /tmp or %TEMP% under decoy filenames (dotnet_diag_\u003chex\u003e.exe on Windows,.cache_\u003chex\u003e on Unix), chmods it 0755, and spawns it detached via spawn(\"/bin/sh\",...) or spawn(\"cmd\",...). A lockfile named analytics_state /.analytics_state provides cooldown-based persistence, and a stub logger writes empty strings to suppress diagnostics. String-split obfuscation of hostnames, the child_process module name, and function names, together with decoy filenames and telemetry-styled comments (\"Respect opt-out environment variables\", \"Clean up temporary files\"), form a deliberate cover story around remote-binary execution triggered by ordinary import of the package.","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 candy-candy-core (npm)","id":"MAL-2026-12521","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":"candy-candy-core","purl":"pkg:npm/candy-candy-core","source":"MAL-2026-12521"}],"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-2026-12521/"}