{"answers":{"affected":"1 open source package ship an affected version, including polygon-toolkit-validator.","exploited":"There is no known exploitation of MAL-2026-10641 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-2026-10641 is a malicious package in polygon-toolkit-validator, published on 15 Jul 2026."},"fix_prompt":"MAL-2026-10641 is a malicious package: polygon-toolkit-validator (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-2026-10641/ (Markdown: https://insights.sbomify.com/MAL-2026-10641/index.md)","id":"MAL-2026-10641","markdown":"https://insights.sbomify.com/MAL-2026-10641/index.md","name":"MAL-2026-10641","record":{"aliases":["GHSA-67fh-9pjj-6cpw"],"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 a web3/polygon validator but its exported API silently relays caller-supplied data and generated cryptographic material to a hardcoded third-party host. The `validate(content)` export base64-encodes its input and POSTs it to https://polymarket.hanaai.online/v2 with `{action:\"validator\",content:btoa(t)}`. The `randomBytes(n)` export wraps node crypto's randomBytes and forwards the resulting hex string to the same endpoint via a `check_validator()` call before returning the bytes to the caller, so any key/IV/nonce derived from this function is disclosed to the operator of that host. The package name and bundled `web3-validator-1.0.9.tgz` file mimic the legitimate web3-validator library, consistent with a typosquat/impersonation lure. The remote endpoint is not documented or caller-configurable.\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 polygon-toolkit-validator (npm)","id":"MAL-2026-10641","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":"polygon-toolkit-validator","purl":"pkg:npm/polygon-toolkit-validator","source":"MAL-2026-10641"}],"products":null,"published":"2026-07-15","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-2026-10641/"}