Issues

• libssh2_channel_read_ex keeps returning LIBSSH2_ERROR_EAGAIN for huge output

  Q&A
  libssh2/libssh2#2533 · Filter by author vivek4434 opened on Aug 23, 2026

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

  memory-leak
  libssh2/libssh2#2023 · Filter by author afldl opened on Jun 10, 2026
  5

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

  libssh2/libssh2#1925 · Filter by author yeshwanthyeah-ship-it opened on May 8, 2026
  15

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

  bug
  libssh2/libssh2#1810 · Filter by author MatrixManAtYrService opened on Mar 1, 2026
  1

• The write stucks at the transport layer.

  libssh2/libssh2#1672 · Filter by author cyberslav-games opened on Sep 22, 2025
  2

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

  libssh2/libssh2#1612 · Filter by author ion201 opened on Jun 18, 2025
  6

• Maximum load of libssh2 data transmission

  enhancementfeature-requestperformance
  libssh2/libssh2#1490 · Filter by author fightingLKH opened on Nov 7, 2024
  1

• libssh2_session_handshake LIBSSH2_ERROR_KEY_EXCHANGE_FAILURE

  libssh2/libssh2#1370 · Filter by author PengShiJin opened on Apr 16, 2024
  6

• SFTP failed with the error -41 working with Openssl

  bughelp wanted
  libssh2/libssh2#1356 · Filter by author depenghu opened on Apr 7, 2024
  14

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

  libssh2/libssh2#1313 · Filter by author sdetweil opened on Jan 23, 2024
  1

• Feature request: Copying a file on SFTP to another directory without roundtrip

  enhancementfeature-requesthelp wanted
  libssh2/libssh2#1265 · Filter by author aguaviva opened on Dec 3, 2023
  5

• Channel cannot be closed or freed early while executing a long running command

  libssh2/libssh2#1218 · Filter by author zhaojh329 opened on Nov 12, 2023
  1

• The loaded known hosts shouldn't be tied to a session

  enhancementfeature-requestperformance
  libssh2/libssh2#1193 · Filter by author UnitedMarsupials opened on Sep 29, 2023

• libssh2_channel_close() can lead to deadlock on MacOS

  bug
  libssh2/libssh2#1188 · Filter by author twitzelbos opened on Sep 21, 2023

• Read fails when using large buffers (starting from around 4GB)

  enhancement
  libssh2/libssh2#1182 · Filter by author Th30n opened on Sep 4, 2023
  3

• autotools: generated libssh2.pc file broken

  bugbuildhelp wanted
  libssh2/libssh2#1113 · Filter by author haampie opened on Jul 9, 2023
  1

• libssh2_userauth_keyboard_interactive_ex callback and memory allocation

  bugdocumentation
  libssh2/libssh2#1078 · Filter by author bagder opened on Jun 1, 2023
  3

• sntrup761x25519-sha512

  enhancementfeature-request
  libssh2/libssh2#1040 · Filter by author jas4711 opened on May 15, 2023
  3

• Window adjustment during channel read operation

  libssh2/libssh2#792 · Filter by author migueldeicaza opened on Jan 27, 2023
  1

• libssh2_sftp_stat_ex() uses "long" for times

  bug
  libssh2/libssh2#735 · Filter by author bagder opened on Aug 16, 2022

• Implement authentication method gssapi-with-mic

  enhancementfeature-request
  libssh2/libssh2#707 · Filter by author LarsNordin-LNdata opened on Jun 10, 2022
  3

• libssh2_sftp_close_handle and LIBSSH2_ERROR_EAGAIN

  libssh2/libssh2#690 · Filter by author PengZheng opened on Apr 8, 2022
  5

• libssh2_channel_exec may return -1 when using non-blocking sockets

  libssh2/libssh2#671 · Filter by author awaeag opened on Feb 9, 2022
  4

• If both Putty and OpenSSH agents are running, only the Putty agent is used

  feature-requestWindows
  libssh2/libssh2#633 · Filter by author MarcelInTO opened on Oct 15, 2021
  1