libssh2

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• Double free in libssh2_sftp_mkdir_ex()

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  Difficulty 3/5 1-2 days Newbie friendliness 48/100

  libssh2/libssh2#2688 · Opened Oct 26, 2026

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• Broken links in the docs

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  Difficulty 1/5 Under an hour Newbie friendliness 84/100

  libssh2/libssh2#2686 · Opened Oct 26, 2026

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• fix for cve-2026-55200 omitted checking one assignment

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  Difficulty 2/5 1-3 hours Newbie friendliness 74/100

  libssh2/libssh2#2676 · 1 comment · Opened Oct 19, 2026

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• libssh2_sftp_symlink: wrong order of arguments

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  documentation

  Difficulty 4/5 3-5 days Newbie friendliness 48/100

  libssh2/libssh2#2597 · 2 comments · Opened Sep 7, 2026

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• libssh2_channel_read_ex keeps returning LIBSSH2_ERROR_EAGAIN for huge output

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  Q&A

  Difficulty 4/5 3-5 days Newbie friendliness 45/100

  libssh2/libssh2#2533 · Opened Aug 23, 2026

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

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  libssh2/libssh2#1925 · 13 comments · 32 reactions · Opened May 8, 2026

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

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  libssh2/libssh2#1612 · 6 comments · Opened Jun 18, 2025

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• Maximum load of libssh2 data transmission

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  enhancement feature-request performance

  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  libssh2/libssh2#1490 · 1 comment · Opened Nov 7, 2024

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• libssh2_session_handshake LIBSSH2_ERROR_KEY_EXCHANGE_FAILURE

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  Difficulty 4/5 3-5 days Newbie friendliness 15/100

  libssh2/libssh2#1370 · 6 comments · 1 reaction · Opened Apr 16, 2024

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• SFTP failed with the error -41 working with Openssl

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  bug help wanted

  Difficulty 4/5 3-5 days Newbie friendliness 30/100

  libssh2/libssh2#1356 · 14 comments · Opened Apr 7, 2024

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

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  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  libssh2/libssh2#1313 · 1 comment · Opened Jan 23, 2024

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

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  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  libssh2/libssh2#1218 · 1 comment · Opened Nov 12, 2023

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

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  enhancement feature-request performance

  Difficulty 3/5 1-2 days Newbie friendliness 50/100

  libssh2/libssh2#1193 · Opened Sep 29, 2023

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• libssh2_channel_close() can lead to deadlock on MacOS

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  bug

  Difficulty 4/5 3-5 days Newbie friendliness 32/100

  libssh2/libssh2#1188 · Opened Sep 21, 2023

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

  May be free again A pull request for this issue was closed without being merged. Open

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  enhancement

  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  libssh2/libssh2#1182 · 3 comments · Opened Sep 4, 2023

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• autotools: generated `libssh2.pc` file broken

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  bug build help wanted

  Difficulty 3/5 1-2 days Newbie friendliness 30/100

  libssh2/libssh2#1113 · 1 comment · Opened Jul 9, 2023

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• libssh2_userauth_keyboard_interactive_ex callback and memory allocation

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  bug documentation

  Difficulty 4/5 3-5 days Newbie friendliness 32/100

  libssh2/libssh2#1078 · 3 comments · Opened Jun 1, 2023

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• sntrup761x25519-sha512

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  enhancement feature-request

  Difficulty 5/5 Over a week Newbie friendliness 20/100

  libssh2/libssh2#1040 · 3 comments · 5 reactions · Opened May 15, 2023

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• Window adjustment during channel read operation

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  Difficulty 5/5 Over a week Newbie friendliness 25/100

  libssh2/libssh2#792 · Opened Jan 27, 2023

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• libssh2_sftp_close_handle and LIBSSH2_ERROR_EAGAIN

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  Difficulty 5/5 Over a week Newbie friendliness 28/100

  libssh2/libssh2#690 · 5 comments · Opened Apr 8, 2022

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

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  libssh2/libssh2#671 · 3 comments · Opened Feb 9, 2022

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

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  feature-request Windows

  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  libssh2/libssh2#633 · 1 comment · Opened Oct 15, 2021

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

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  memory-leak

  Difficulty 2/5 1-3 hours Newbie friendliness 85/100

  libssh2/libssh2#2023 · 5 comments · Opened Jun 10, 2026

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

  Possibly taken @MatrixManAtYrService claimed this 239 days ago. Open

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  bug

  Difficulty 2/5 1-3 hours Newbie friendliness 35/100

  libssh2/libssh2#1810 · 1 comment · Opened Mar 1, 2026

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• The write stucks at the transport layer.

  Possibly taken @alexanderadam claimed this 162 days ago. Open

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  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  libssh2/libssh2#1672 · 2 comments · Opened Sep 22, 2025

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

  Possibly taken @Sadaf-A claimed this 1036 days ago. Open

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  enhancement feature-request help wanted

  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  libssh2/libssh2#1265 · 5 comments · Opened Dec 3, 2023

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• libssh2_sftp_stat_ex() uses "long" for times

  Possibly taken @doorsdown claimed this 1076 days ago. Open

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  bug

  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  libssh2/libssh2#735 · 1 reaction · Opened Aug 16, 2022

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• Implement authentication method gssapi-with-mic

  Possibly taken A pull request linked to this issue is open or already merged. Open

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  enhancement feature-request

  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  libssh2/libssh2#707 · 3 comments · Opened Jun 10, 2022

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