CVE-2026-109681
Medium · 4.7CVSS
4.7
EPSS
0.2%
Published
Oct 21, 2026
CISA due date
—
The record
The FTP client trusts the server's PASV response IP:port without validation against the control connection target. A rogue FTP server can specify any IP:port in the 227 Passive Mode response, causing the operator's machine to open a TCP connection to an arbitrary host.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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