CVE-2026-102990
HIGH
8,2
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
Description
AI Translation Available
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.
1333
Inefficient Regular Expression Complexity
DraftCommon Consequences
Security Scopes Affected:
Availability
Potential Impacts:
Dos: Resource Consumption (Cpu)
Applicable Platforms
All platforms may be affected
https://github.com/patrickjuchli/basic-ftp/security/advisories/GHSA-c475-qrg2-p…
https://github.com/patrickjuchli/basic-ftp/commit/d0d9e07c56e519587bb50532ac6ea…
https://github.com/patrickjuchli/basic-ftp/releases/tag/v6.2.1
https://github.com/patrickjuchli/basic-ftp/security/advisories/GHSA-c475-qrg2-p…