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Product · ronf

asyncssh

4 known vulnerabilities.

asyncssh at a glance

Last 12 months
4
Critical · all time
0
Exploited · all time
0
Public exploit · all time
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All Critical High Medium Low Exploited only Public exploit

4 results · Feed

  • Medium 6.5
    CVE-2026-62949

    AsyncSSH: asyncio event-loop freeze via SSH maximum packet size = 0 in SSH_MSG_CHANNEL_OPEN / OPEN_CONFIRMATION

    AsyncSSH is a Python package which provides an asynchronous client and server implementation of the SSHv2 protocol on top of the Python asyncio framework. Prior to 2.24.0, _process_channel_open and _process_channel_open_confirmation in asyncssh/connection.py …

    ronf asyncssh asyncssh python-asyncssh Debian Ubuntu PyPI
  • High 8.2
    CVE-2026-45309

    AsyncSSH `AuthorizedKeysFile %u` path traversal allows attacker-selected authorized keys to authenticate a traversal username

    AsyncSSH is a Python package which provides an asynchronous client and server implementation of the SSHv2 protocol on top of the Python asyncio framework. Prior to 2.23.0, AsyncSSH expands the OpenSSH-compatible AuthorizedKeysFile %u token in asyncssh/config.…

    ronf asyncssh python-asyncssh asyncssh Debian Ubuntu PyPI
  • Medium 5.9
    CVE-2026-54590

    AsyncSSH AuthorizedKeysFile username substitution bypass through ~ and environment expansion

    AsyncSSH is a Python package which provides an asynchronous client and server implementation of the SSHv2 protocol on top of the Python asyncio framework. Version 2.23.0 contains an incomplete fix for CVE-2026-45309 in SSHServerConfig._set_tokens that blocks …

    ronf asyncssh asyncssh python-asyncssh Debian Ubuntu PyPI
  • High 8.1
    CVE-2026-54591

    AsyncSSH: SCP Path Traversal to Arbitrary File Write

    AsyncSSH is a Python package which provides an asynchronous client and server implementation of the SSHv2 protocol on top of the Python asyncio framework. Prior to 2.23.1, a malicious SSH server can write arbitrary files on the asyncssh SCP client's filesyste…

    ronf asyncssh python-asyncssh asyncssh Debian Ubuntu PyPI