CVE-2026-90623

andreashappe cochise SSH Host Key ssh_connection.py asyncssh.connect certificate validation

LOW
3.7
CVSS Score
Published: September 14, 2026 at 03:45 AM UTC
Updated: September 14, 2026 at 09:14 PM UTC
1 product affected across 1 vendorCochise

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Severity
LOW3.7
Exploit prediction
EPSS 0.3%
SSVC
PoC

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (6)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/403205
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/403205/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2026-90623
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/914815
ExploitIssue Tracking
Source: cverecord
https://github.com/andreashappe/cochise/issues/13

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

3.7LOWVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-295CWE-287

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