CVE-2026-54591Disclosure

LOWCVSS 8.1 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

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 filesystem by sending filenames containing ../ traversal sequences because _parse_cd_args in scp.py returns server-provided names verbatim and _recv_files joins them to the destination path without enforcing the target directory boundary. This issue is fixed in version 2.23.1.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-22

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-07-20: 107-20
Signal classification1 categories
Disclosure
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • Ferramentas Linux@Cezar_H_Linux
    Disclosure

    🚨 ATENÇÃO admins Fedora 44! O python-asyncssh tem duas vulnerabilidades críticas (CVE-2026-54590 e CVE-2026-54591). Saiba mais :- > https://tinyurl.com/5ts4m4rt https://t.co/oHLfPNhEgU

    Post summary

    Alert notifying Fedora 44 administrators that python‑asyncssh contains two critical CVEs, with a hyperlink for further details.

    1002079
    1.5K followersView on X

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