CVE-2026-92387 never-ending loop via server response omission

By permanently omitting the final control-response line, a malicious FTP, IMAP, POP3, or SMTP server can exploit libcurl and completely bypass its configured transfer timeout mechanism, indefinitely blocking all concurrent transfers bound to the same multi-handle...

CVE-2026-92387 never-ending loop via server response omission

By permanently omitting the final control-response line, a malicious FTP, IMAP, POP3, or SMTP server can exploit libcurl and completely bypass its configured transfer timeout mechanism, indefinitely blocking all concurrent transfers bound to the same multi-handle...

CVE-2026-92387

The libcurl library is vulnerable to a denial of service (DoS) condition where a malicious FTP, IMAP, POP3, or SMTP server can exploit the software by permanently omitting the final control-response line. This action allows the attacker to completely bypass the configured transfer timeout mechani...

CVE-2026-92387

By permanently omitting the final control-response line, a malicious FTP, IMAP, POP3, or SMTP server can exploit libcurl and completely bypass its configured transfer timeout mechanism, indefinitely blocking all concurrent transfers bound to the same multi-handle...

CURL-CVE-2026-92387 never-ending loop via server response omission

By permanently omitting the final control-response line, a malicious FTP, IMAP, POP3, or SMTP server can exploit libcurl and completely bypass its configured transfer timeout mechanism, indefinitely blocking all concurrent transfers bound to the same multi-handle...

never-ending loop via server response omission

By permanently omitting the final control-response line, a malicious FTP, IMAP, POP3, or SMTP server can exploit libcurl and completely bypass its configured transfer timeout mechanism, indefinitely blocking all concurrent transfers bound to the same multi-handle...

curl: CVE-2026-92387: never-ending loop via server response omission

Hi all, I found a way to make a malicious FTP, IMAP, POP3, or SMTP server defeat libcurl's own transfer timeout entirely and, worse, freeze every other transfer sharing the same multi handle. All it takes is never sending a final control-response line. The bug Curlppstatemach checks the response...

CERTINFO never-ending busy-loop

libcurl provides the CURLOPTCERTINFO option to allow applications to request details to be returned about a TLS server's certificate chain. Due to an erroneous function, a malicious server could make libcurl built with NSS get stuck in a never-ending busy-loop when trying to retrieve that...