{"id":"CVE-2026-90623","state":"PUBLISHED","title":"andreashappe cochise SSH Host Key ssh_connection.py asyncssh.connect certificate validation","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.","publishedAt":"2026-09-14T03:45:13.120Z","updatedAt":"2026-09-14T15:48:49.067Z","severity":{"score":6.3,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P","source":"VulDB"},"assigner":"VulDB","products":["andreashappe cochise"],"affected":[{"vendor":"andreashappe","product":"cochise","versions":[{"version":"0.4.0","status":"affected"},{"version":"0.4.1","status":"affected"}],"cpes":["cpe:2.3:a:andreashappe:cochise:*:*:*:*:*:*:*:*"],"modules":["SSH Host Key Handler"]}],"references":["https://vuldb.com/vuln/403205","https://vuldb.com/vuln/403205/cti","https://vuldb.com/cve/CVE-2026-90623","https://vuldb.com/submit/914815","https://github.com/andreashappe/cochise/issues/13","https://github.com/andreashappe/cochise/"],"weaknesses":["CWE-295","CWE-287"],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/90xxx/CVE-2026-90623.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-90623","state":"PUBLISHED","datePublished":"2026-09-14T03:45:13.120Z","dateUpdated":"2026-09-14T15:48:49.067Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2026-09-12T20:30:21.642Z"},"containers":{"cna":{"title":"andreashappe cochise SSH Host Key ssh_connection.py asyncssh.connect certificate validation","descriptions":[{"lang":"en","value":"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":[{"vendor":"andreashappe","product":"cochise","versions":[{"version":"0.4.0","status":"affected"},{"version":"0.4.1","status":"affected"}],"cpes":["cpe:2.3:a:andreashappe:cochise:*:*:*:*:*:*:*:*"],"modules":["SSH Host Key Handler"]}],"references":[{"url":"https://vuldb.com/vuln/403205","name":"VDB-403205 | andreashappe cochise SSH Host Key ssh_connection.py asyncssh.connect certificate validation","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/403205/cti","name":"VDB-403205 | CTI Indicators (IOB, IOC, TTP, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/cve/CVE-2026-90623","name":"CVE-2026-90623 | CVE Analysis and Report","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/914815","name":"Submit #914815 | andreashappe cochise v0.4.1 RCE","tags":["third-party-advisory"]},{"url":"https://github.com/andreashappe/cochise/issues/13","tags":["exploit","issue-tracking"]},{"url":"https://github.com/andreashappe/cochise/","tags":["product"]}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":6.3,"vectorString":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P","baseSeverity":"MEDIUM"}},{"cvssV3_1":{"version":"3.1","baseScore":3.7,"vectorString":"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","baseSeverity":"LOW"}},{"cvssV3_0":{"version":"3.0","baseScore":3.7,"vectorString":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R","baseSeverity":"LOW"}},{"cvssV2_0":{"version":"2.0","baseScore":2.6,"vectorString":"AV:N/AC:H/Au:N/C:N/I:P/A:N/E:POC/RL:ND/RC:UR"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-295","type":"CWE","lang":"en","description":"Improper Certificate Validation"}]},{"descriptions":[{"cweId":"CWE-287","type":"CWE","lang":"en","description":"Improper Authentication"}]}],"providerMetadata":{"shortName":"VulDB","orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateUpdated":"2026-09-14T03:45:13.120Z"},"timeline":[{"time":"2026-09-12T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-09-12T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-09-12T22:35:26.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"ez-lbz (VulDB User)","type":"reporter"},{"lang":"en","value":"VulDB CNA Team","type":"coordinator"}],"x_generator":["VulDB PVTS v202609"]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-14T15:48:25.626549Z","id":"CVE-2026-90623","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-14T15:48:49.067Z"}}]}}}