The SSH server implementation of AsyncSSH before 1.12.1 does not properly check whether…
Priority MEDIUM 46CWE-287Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub. Impact type from CWE-287.
Summary
The SSH server implementation of AsyncSSH before 1.12.1 does not properly check whether authentication is completed before processing other requests. A customized SSH client can simply skip the authentication step.
Why it matters now
EPSS 0.01783 78th percentileScored 2026-11-07
Fix Fixed AsyncSSH (PyPI): 1.12.1
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | AsyncSSH (PyPI) | before 1.12.1 | 1.12.1 | Patch available | GHSA-97cv-6pjf-5f9q |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- AsyncSSH (PyPI) Vendor— Affected before 1.12.1 Fixed in 1.12.1 Patch available GHSA-97cv-6pjf-5f9q
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:asyncssh_project:asyncssh:*:*:*:*:*:*:*:* | before 1.12.1 | Vulnerable | Asyncssh Project |
- cpe:2.3:a:asyncssh_project:asyncssh:*:*:*:*:*:*:*:* Versions before 1.12.1 Vulnerable ·Asyncssh Project
Remediation
- Fix · GHSA-97cv-6pjf-5f9q AsyncSSH (PyPI) Fixed in 1.12.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2018-7749
- 2026-10-03 Alias added: GHSA-97cv-6pjf-5f9q
References
Advisory 2
Other 5
- [asyncssh-announce] 20180310 AsyncSSH 1.12.1 released, with important security fix!
- https://github.com/ronf/asyncssh/commit/16e6ebfa893167c7d9d3f6dc7a2c0d197e47f43a
- https://github.com/pypa/advisory-database/tree/main/vulns/asyncssh/PYSEC-2018-108.yaml
- https://github.com/ronf/asyncssh
- https://groups.google.com/forum/#!msg/asyncssh-announce/57_5O7kiHSA/8BXZ_hxHAQAJ
More Asyncssh Project Asyncssh vulnerabilities
- TI-2026-33108 Path traversal in ronf asyncssh CVSS 4.0HIGH 8.2
- TI-2023-26623 The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6… CVSS 3.1MEDIUM 5.9
- TI-2023-25009 An issue in AsyncSSH before 2.14.1 allows attackers to control the remote end of an SSH… CVSS 3.1MEDIUM 6.8
- TI-2023-25008 An issue in AsyncSSH before 2.14.1 allows attackers to control the extension info message… CVSS 3.1MEDIUM 5.9
Sources
- CVE-2018-7749 · CVE Program
- CVE-2018-7749 · NVD
- FIRST EPSS
- GHSA-97cv-6pjf-5f9q · GitHub Advisory Database · CC BY 4.0
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