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AEAD ciphers (chacha20-poly1305, AES-GCM) leak 16 bytes of uninitialized memory per outgoing encrypted packet

Status: Open.

#2023 In libssh2/libssh2;

· afldl opened on Jun 10, 2026

Request for release (v1.11.2) to address CVE-2026-7598(integer overflow)

Status: Open.

#1925 In libssh2/libssh2;

· yeshwanthyeah-ship-it opened on May 8, 2026

To avoid interfering with auth, send keepalives at the end of the interval instead of the beginning

bug

Status: Open.

#1810 In libssh2/libssh2;

· MatrixManAtYrService opened on Mar 1, 2026

scp_recv2 - cannot download file with a name longer than 246 chars

feature-request

Status: Open.

#1738 In libssh2/libssh2;

· psiquo opened on Nov 4, 2025

The write stucks at the transport layer.

Status: Open.

#1672 In libssh2/libssh2;

· cyberslav-games opened on Sep 22, 2025

libssh2_userauth methods always indicate error when additional auth steps are required by server

Status: Open.

#1612 In libssh2/libssh2;

· ion201 opened on Jun 18, 2025

Crash on decrypt operation using OpenSSL backend

bug

needs-info

Status: Open.

#1491 In libssh2/libssh2;

· Trzik opened on Nov 8, 2024

Maximum load of libssh2 data transmission

enhancement

feature-request

performance

Status: Open.

#1490 In libssh2/libssh2;

· fightingLKH opened on Nov 7, 2024

IPv6 format & host key validation with known_hosts file

enhancement

Status: Open.

#1398 In libssh2/libssh2;

· Krisscut opened on May 29, 2024

libssh2_session_handshake LIBSSH2_ERROR_KEY_EXCHANGE_FAILURE

Status: Open.

#1370 In libssh2/libssh2;

· PengShiJin opened on Apr 16, 2024

SFTP failed with the error -41 working with Openssl

bug

help wanted

Status: Open.

#1356 In libssh2/libssh2;

· depenghu opened on Apr 7, 2024

ssh from docker container on arm64 macos ventura to same mac (docker host) fails, ERROR: SSH handshake failed.

Status: Open.

#1313 In libssh2/libssh2;

· sdetweil opened on Jan 23, 2024