Vulnerability Database · PyPI · asyncssh · Version
asyncssh 2.21.0
2.21.0 is affected by 6 vulnerabilities.
The vulnerabilities that cover this exact version are listed below with the fixed version to move to. The upgrade Vulert recommends: 2.24.1.
Critical 0 High 2 Medium 4 Low 0 Unrated 0
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Released 03 May 2025
Licence EPL-2.0 OR GPL-2.0-or-later
Also known from other sources 6
Newer releases 93
Database updated 23/Oct/2026
Release and licence data published by PyPI. Licence information is not legal advice.
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01 Vulnerabilities affecting this version
asyncssh 2.21.0 vulnerabilities
6 vulnerabilities cover asyncssh 2.21.0. Open the full list in the database.
| Vulnerability | Severity | Fixed version | Disclosed |
|---|---|---|---|
| CVE-2026-54591: asyncssh Arbitrary File Write Vulnerability via SCP Path Traversal | 8.1 high | 2.23.1 | 10 Sep 2026 |
| CVE-2026-54591: asyncssh SCP Path Traversal Vulnerability Leading to Arbitrary File Write | 8.1 high | 2.23.1 | 26 Aug 2026 |
| CVE-2026-62949: AsyncSSH Client and Server Event Loop Freeze via Zero Maximum Packet Size | 6.5 medium | 2.24.0 | 01 Oct 2026 |
| CVE-2026-62949: AsyncSSH Client and Server Event Loop Freeze via Zero Maximum Packet Size | 6.5 medium | 2.24.0 | 17 Sep 2026 |
| CVE-2026-54590: asyncssh Incomplete Fix Allows Unauthorized Access via Usernames with Leading Tilde | 5.9 medium | 2.23.1 | 10 Sep 2026 |
| CVE-2026-54590: asyncssh Incomplete Fix Allows Unauthorized Access via Leading Tilde in AuthorizedKeysFile | 5.9 medium | 2.23.1 | 26 Aug 2026 |
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Questions
About asyncssh 2.21.0
Is asyncssh 2.21.0 vulnerable?
Yes. 6 vulnerabilities in the Vulert database cover asyncssh 2.21.0: 0 critical, 2 high, 4 medium and 0 low. The upgrade Vulert recommends is 2.24.1, and each entry above names the fixed version to move to.
Which version of asyncssh should I use instead of 2.21.0?
2.24.1 is the version Vulert recommends for this release line. The version table on the package page lists every release with the vulnerabilities recorded against it.
Is 2.21.0 the latest release of asyncssh?
No. 2.21.0 was published 03 May 2025, and newer releases exist. Newer is not automatically safer — the version table on the package page shows what each release carries.
How do I monitor asyncssh for upcoming vulnerabilities?
Upload the manifest or SBOM for your application at vulert.com/scanner and Vulert keeps checking the asyncssh version you actually run against new disclosures, then alerts you when one affects it. There is no installation and no source-code access required.