{"id":13200,"date":"2026-05-28T07:03:32","date_gmt":"2026-05-28T07:03:32","guid":{"rendered":"https:\/\/serisec.com\/index.php\/2026\/05\/28\/malicious-npm-package-stole-files-from-html\/"},"modified":"2026-05-28T07:03:32","modified_gmt":"2026-05-28T07:03:32","slug":"malicious-npm-package-stole-files-from-html","status":"publish","type":"post","link":"https:\/\/serisec.com\/index.php\/2026\/05\/28\/malicious-npm-package-stole-files-from-html\/","title":{"rendered":"Malicious npm Package Stole Files From Claude AI User Directory via GitHub"},"content":{"rendered":"<p>    Malicious npm Package Stole Files From Claude AI User Directory via GitHub<br \/>\n \t<BR><br \/>\n<BR><\/BR><br \/>\n    <!-- no image --><br \/>\n \t<BR><br \/>\n<BR><\/BR><\/p>\n<div>Cybersecurity researchers have discovered a new malicious package on the npm registry that comes with information stealing capabilities.<\/p>\n<p>According to OX Security, the package, named &#8220;mouse5212-super-formatter,&#8221; is designed to upload files from &#8220;\/mnt\/user-data,&#8221; a dedicated directory used by Anthropic&#8217;s Claude artificial intelligence (AI) tool to handle uploads and outputs in the background. The<\/p><\/div>\n<p> \t<BR><br \/>\n <BR><\/BR><\/p>\n<p> \t<BR><br \/>\n<BR><\/BR><br \/>\n<a href=\"https:\/\/thehackernews.com\/2026\/05\/malicious-npm-package-stole-files-from.html\">Go to TheHackersNews<\/a><br \/>\n \t<BR><br \/>\n <BR><\/BR><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Malicious npm Package Stole Files From Claude AI User Directory via GitHub Cybersecurity researchers have discovered a new malicious package on the npm registry that comes with information stealing capabilities. According to OX Security, the package, named &#8220;mouse5212-super-formatter,&#8221; is designed to upload files from &#8220;\/mnt\/user-data,&#8221; a dedicated directory used by Anthropic&#8217;s Claude artificial intelligence (AI) [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[60],"tags":[76],"class_list":["post-13200","post","type-post","status-publish","format-standard","hentry","category-thehackersnews","tag-thehackersnews"],"_links":{"self":[{"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/posts\/13200"}],"collection":[{"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/comments?post=13200"}],"version-history":[{"count":0,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/posts\/13200\/revisions"}],"wp:attachment":[{"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/media?parent=13200"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/categories?post=13200"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/tags?post=13200"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}