{"answers":{"affected":"1 open source package ship an affected version, including @fairwords/encryption.","exploited":"There is no known exploitation of MAL-2026-2506 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-2026-2506 is a malicious package in @fairwords/encryption, published on 8 Apr 2026."},"fix_prompt":"MAL-2026-2506 is a malicious package: @fairwords/encryption (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-2026-2506/ (Markdown: https://insights.sbomify.com/MAL-2026-2506/index.md)","id":"MAL-2026-2506","markdown":"https://insights.sbomify.com/MAL-2026-2506/index.md","name":"MAL-2026-2506","record":{"aliases":["GHSA-6rgf-v8fm-jf4g"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"The @fairwords/encryption package was compromised as part of the TeamPCP/CanisterWorm campaign. A `postinstall` hook executes `node scripts/check-env.js || true` which performs multi-stage credential harvesting, encrypted exfiltration, and self-propagation.\n\nThe payload harvests 40+ environment variable patterns (AWS, Azure, GCP, GitHub, OpenAI, Stripe), reads 30+ filesystem credential locations (SSH keys, .npmrc, Kubernetes configs, Docker auth, Terraform files), steals crypto wallet data (Solana, Ethereum, Bitcoin, MetaMask, Phantom, Exodus, Atomic Wallet), and extracts Chrome passwords on Linux via hardcoded PBKDF2 key derivation.\n\nExfiltration uses a RSA-4096 + AES-256-CBC hybrid encryption scheme, sending data to an HTTPS C2 endpoint (telemetry.api-monitor.com) and an Internet Computer (ICP) canister as a decentralized dead-drop.\n\nThe worm steals npm tokens to enumerate and infect all publishable packages owned by the token holder, auto-publishing with bumped version numbers. It also performs cross-ecosystem propagation to PyPI via .pth file injection.\n\nVersion 0.0.6 was auto-published ~8 minutes after the initial compromise of version 0.0.5, containing an incomplete variant propagation payload.\n\nThe package @fairwords/encryption was found to contain malicious code.\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 @fairwords/encryption (npm)","id":"MAL-2026-2506","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":"@fairwords/encryption","purl":"pkg:npm/%40fairwords/encryption","source":"MAL-2026-2506"}],"products":null,"published":"2026-04-08","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-2026-2506/"}