CVE Explorer

CVE-2026-54591

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

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:0b6fb05245d7ee611e26378afa8dd5c701591029f0576822a4f344dbc7541c98

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"asyncssh","vendor":"ronf","versions":[{"status":"affected","version":"< 2.23.1"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:111efe8913ae2beaf335b3501fbfb6709b1d6ca651c8aeaa3d47af31b4f21ad1 · sha256:8a74a50e3eb0684f… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"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"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:111efe8913ae2beaf335b3501fbfb6709b1d6ca651c8aeaa3d47af31b4f21ad1 · sha256:8a74a50e3eb0684f… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-22","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:111efe8913ae2beaf335b3501fbfb6709b1d6ca651c8aeaa3d47af31b4f21ad1 · sha256:8a74a50e3eb0684f… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions

{"name":"https://github.com/ronf/asyncssh/commit/d730803b8e4e94c20c7580d90f94d1e05f9f58de","tags":["x_refsource_MISC"],"url":"https://github.com/ronf/asyncssh/commit/d730803b8e4e94c20c7580d90f94d1e05f9f58de"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:111efe8913ae2beaf335b3501fbfb6709b1d6ca651c8aeaa3d47af31b4f21ad1 · sha256:8a74a50e3eb0684f… · /containers/cna/references/1

{"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"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:111efe8913ae2beaf335b3501fbfb6709b1d6ca651c8aeaa3d47af31b4f21ad1 · sha256:8a74a50e3eb0684f… · /containers/cna/references/2

{"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"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:111efe8913ae2beaf335b3501fbfb6709b1d6ca651c8aeaa3d47af31b4f21ad1 · sha256:8a74a50e3eb0684f… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

← Back to CVE Explorer