Python asyncssh: AsyncSSH is a Python package which provides an asynchronous client and server implementation of the
Affects python-asyncsshSource GCVE Database
Not known to be exploited · CVSS 6.5 Medium · fixed in 2.24.1 : update python-asyncssh when convenient.
Data as of 13 Nov 2026, 21:40 UTC
Thin evidence
One scorer or none| CNA (GitHub_M) | CVSS 3.1 | 6.5 |
|---|
- Patch
- Available – fixed in 2.24.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 9 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.10python-asyncsshpkg:deb/ubuntu/python-asyncssh?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSpython-asyncsshpkg:deb/ubuntu/python-asyncssh?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu Pro 24.04 LTSpython-asyncsshpkg:deb/ubuntu/python-asyncssh?arch=source&distro=esm-apps/nobleOther threats | Affected
| Fixed in– |
Ubuntu Pro 22.04 LTSpython-asyncsshpkg:deb/ubuntu/python-asyncssh?arch=source&distro=esm-apps/jammyOther threats | Affected
| Fixed in– |
Ubuntu 20.04 LTSpython-asyncsshpkg:deb/ubuntu/python-asyncssh?arch=source&distro=focalOther threats | Affected
| Fixed in– |
Ubuntu Pro 18.04 LTSpython-asyncsshpkg:deb/ubuntu/python-asyncssh?arch=source&distro=esm-apps/bionicOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade AsyncSSH to version 2.24.1 or later, where this vulnerability is fixed. No other mitigation is indicated or required.
Description
AsyncSSH versions prior to 2.24.1 contain a vulnerability in the SFTP client implementation where filenames returned by a remote server are trusted without validation. This allows a malicious or compromised SFTP server to specify absolute or path-traversal filenames, causing files to be written outside the intended local directory. The issue is fixed in version 2.24.1.
References
- ubuntu.com/security/CVE-2026-77473 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-77473 (opens in a new tab)
- github.com/ronf/asyncssh/security/advisories/GHSA-q8m6-9rfx-39rf (opens in a new tab)
- github.com/ronf/asyncssh/commit/eaf7fd3b058ccb36b51ed932158d36cf304aa7c3 (opens in a new tab)
- github.com/ronf/asyncssh/releases/tag/v2.24.1 (opens in a new tab)