{"id":"CVE-2026-102990","published":"2026-09-30T20:17:26.140","lastModified":"2026-09-30T21:17:06.307","description":"basic-ftp is an FTP client for Node.js. Prior to 6.2.1, Client.list() can be forced by a malicious or compromised FTP server to spend quadratic CPU time parsing a directory listing because the RE_LINE expression in src/parseListUnix.ts backtracks across adjacent variable-length owner and group fields when a long Unix-style line has a valid prefix but cannot satisfy the later size and date fields. parseList() selects a parser from the last nonblank line and then applies it to every line, so a normal final line can select the Unix parser while an earlier crafted line blocks the Node.js event loop and freezes the process. This issue is fixed in version 6.2.1.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":["CWE-1333"],"vendors":[],"products":[],"references":[{"url":"https://github.com/patrickjuchli/basic-ftp/commit/d0d9e07c56e519587bb50532ac6eadbb0cb0cfe9","tags":[]},{"url":"https://github.com/patrickjuchli/basic-ftp/releases/tag/v6.2.1","tags":[]},{"url":"https://github.com/patrickjuchli/basic-ftp/security/advisories/GHSA-c475-qrg2-pj4r","tags":[]},{"url":"https://github.com/patrickjuchli/basic-ftp/security/advisories/GHSA-c475-qrg2-pj4r","tags":[]}],"exploitRefs":[{"url":"https://github.com/patrickjuchli/basic-ftp/commit/d0d9e07c56e519587bb50532ac6eadbb0cb0cfe9","tags":[]},{"url":"https://github.com/patrickjuchli/basic-ftp/releases/tag/v6.2.1","tags":[]},{"url":"https://github.com/patrickjuchli/basic-ftp/security/advisories/GHSA-c475-qrg2-pj4r","tags":[]},{"url":"https://github.com/patrickjuchli/basic-ftp/security/advisories/GHSA-c475-qrg2-pj4r","tags":[]}],"hasPoc":true,"ai":null}