https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-05T14:29:44.082465+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/cve-2026-54590 CVE-2026-54590 — AsyncSSH AuthorizedKeysFile username substitution bypass through ~ and environment expansion 2026-10-05T14:29:44.084040+00:00

Affected: ronf asyncssh

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 /, , and .. before %u substitution in AuthorizedKeysFile but does not block a leading ~ or ${ENV}, allowing later expansion in _expand_val and Path(filename).expanduser() to escape the intended authorized-keys directory. This issue is fixed in version 2.23.1.