PT-2026-56577 · Pypi · Asyncssh
CVE-2026-54590
·
Published
2026-07-08
·
Updated
2026-09-10
CVSS v3.1
5.9
Medium
| Vector | AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N |
Name of the Vulnerable Software and Affected Versions
AsyncSSH version 2.23.0
Description
An incomplete fix in the
SSHServerConfig. set tokens function fails to block leading ~ or ${ENV} characters before %u substitution in the AuthorizedKeysFile. This allows subsequent expansion in expand val and Path(filename).expanduser() to escape the intended authorized-keys directory.Recommendations
Update AsyncSSH to version 2.23.1.
Exploit
Fix
Path traversal
IDOR
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Related Identifiers
Affected Products
Asyncssh