{"id":"MAL-2026-17558","summary":"Malicious code in css-txedrf-polyfill (npm)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (7d70c660ff3138360df0239fc6ef3db7beaca61ca069bc2d108ed893c68acb63)\nthunderboltRegistry.js executes an IIFE at require time that runs OS reconnaissance commands (id, whoami, uname -a, ifconfig/ip addr, cat /etc/hosts) via child_process.execSync, URL-encodes the output together with hostname, node version, platform, and pid, and POSTs/GETs each result via fetch to the hardcoded endpoint http://dxpoc.gt.tc/callback.php/bb8968d0f67000433bf7005dd5ad2d1f over plain HTTP. The package's exported module names (thunderboltRegistry, siteAssetsRegistry, documentManagementRegistry, editorRegistry, corvidRegistry) impersonate Wix thunderbolt internal registry modules and the manifest references static.parastorage.com URLs, consistent with a dependency-confusion lure aimed at a private Wix namespace. Any consumer that requires one of these modules triggers the reconnaissance and exfiltration to the attacker-controlled host.\n","modified":"2026-10-05T04:15:05.301016837Z","published":"2026-10-05T03:36:37Z","database_specific":{"malicious-packages-origins":[{"import_time":"2026-10-05T03:57:39.29343073Z","modified_time":"2026-10-05T03:36:37Z","sha256":"7d70c660ff3138360df0239fc6ef3db7beaca61ca069bc2d108ed893c68acb63","source":"amazon-inspector","versions":["1.0.0"],"id":"IN-MAL-2026-021020"}]},"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/css-txedrf-polyfill/v/1.0.0"}],"affected":[{"package":{"name":"css-txedrf-polyfill","ecosystem":"npm","purl":"pkg:npm/css-txedrf-polyfill"},"versions":["1.0.0"],"database_specific":{"indicators":{"package_integrity":[{"hashes":{"sha1":"e72b9c80b88d55a47a6b37c88aee7832ecf07813","sha512_sri":"sha512-4Wc21Gnft0/trT2gFp4fP3bu2ANsSVP3m+QtNUHTDe3Cgv27dUljzznUh2Yya/U4AKEMRpICctT1Ef0j8HbQhg=="},"filename":"css-txedrf-polyfill-1.0.0.tgz"}],"evidence_files":[{"sha256":"a485cb48081ea590cab385a405886cfe6f30af7d415f30bc8d7937ace461b928","tlsh":"e87154a5b99df02065c33438cb7f4049b4bbc6672d6caee0744899b01f7985c01be6f8","path":"thunderboltRegistry.js"}]},"source":"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/css-txedrf-polyfill/MAL-2026-17558.json","cwes":[{"cweId":"CWE-506","description":"The product contains code that appears to be malicious in nature.","name":"Embedded Malicious Code"}]}}],"schema_version":"1.9.0","credits":[{"name":"Amazon Inspector","contact":["inspector-research@amazon.com"],"type":"FINDER"}]}