{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-54591","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-06-15T19:45:23.539Z","datePublished":"2026-07-08T20:33:57.420Z","dateUpdated":"2026-07-09T14:40:52.505Z"},"containers":{"cna":{"title":"AsyncSSH: SCP Path Traversal to Arbitrary File Write","problemTypes":[{"descriptions":[{"cweId":"CWE-22","lang":"en","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.1,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H","version":"3.1"}}],"references":[{"name":"https://github.com/ronf/asyncssh/security/advisories/GHSA-2wxc-x7rj-hg8f","tags":["x_refsource_CONFIRM"],"url":"https://github.com/ronf/asyncssh/security/advisories/GHSA-2wxc-x7rj-hg8f"},{"name":"https://github.com/ronf/asyncssh/commit/d730803b8e4e94c20c7580d90f94d1e05f9f58de","tags":["x_refsource_MISC"],"url":"https://github.com/ronf/asyncssh/commit/d730803b8e4e94c20c7580d90f94d1e05f9f58de"},{"name":"https://github.com/ronf/asyncssh/releases/tag/v2.23.1","tags":["x_refsource_MISC"],"url":"https://github.com/ronf/asyncssh/releases/tag/v2.23.1"}],"affected":[{"vendor":"ronf","product":"asyncssh","versions":[{"version":"< 2.23.1","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-07-08T20:33:57.420Z"},"descriptions":[{"lang":"en","value":"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."}],"source":{"advisory":"GHSA-2wxc-x7rj-hg8f","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-09T14:21:05.079234Z","id":"CVE-2026-54591","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-07-09T14:40:52.505Z"}}]}}