CVE-2026-90623andreashappe cochise SSH Host Key ssh_connection.py asyncssh.connect certificate validation
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No exploitation reported and no EPSS estimate yet.
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A weakness has been identified in andreashappe cochise up to 0.4.1. Affected is the function asyncssh.connect of the file src/cochise/ssh_connection.py of the component SSH Host Key Handler. Executing a manipulation can lead to improper certificate validation. The attack may be launched remotely. The attack requires a high level of complexity. The exploitability is told to be difficult. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
- CVSS
- 3.7 LOW (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R
- Weakness (CWE)
- CWE-295, CWE-287
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulDB
- NVD analysis
- Deferred
- Record last updated
- Sep 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
andreashappe cochise andreashappe:cochise | 0.4.0; 0.4.1 | CNA record |
References
- https://vuldb.com/vuln/403205vdb-entry, technical-description
- https://vuldb.com/vuln/403205/ctisignature, permissions-required
- https://vuldb.com/cve/CVE-2026-90623third-party-advisory
- https://vuldb.com/submit/914815third-party-advisory
- https://github.com/andreashappe/cochise/issues/13exploit, issue-tracking
- https://github.com/andreashappe/cochise/product
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.