{"history":[{"alert":0,"cve":"CVE-2026-44467","id":23432,"kind":"epss","observed_at":1794500401,"payload":"{\"date\": \"2026-11-12\", \"epss\": 0.00135, \"percentile\": 0.03026}"},{"alert":0,"cve":"CVE-2026-44467","id":20752,"kind":"epss","observed_at":1794327601,"payload":"{\"date\": \"2026-11-10\", \"epss\": 0.00135, \"percentile\": 0.03001}"},{"alert":0,"cve":"CVE-2026-44467","id":18753,"kind":"epss","observed_at":1794241201,"payload":"{\"date\": \"2026-11-09\", \"epss\": 0.00135, \"percentile\": 0.0299}"},{"alert":0,"cve":"CVE-2026-44467","id":16824,"kind":"epss","observed_at":1794154800,"payload":"{\"date\": \"2026-11-08\", \"epss\": 0.00135, \"percentile\": 0.02995}"},{"alert":0,"cve":"CVE-2026-44467","id":14802,"kind":"epss","observed_at":1794068402,"payload":"{\"date\": \"2026-11-07\", \"epss\": 0.00135, \"percentile\": 0.02992}"},{"alert":0,"cve":"CVE-2026-44467","id":12589,"kind":"epss","observed_at":1793982001,"payload":"{\"date\": \"2026-11-06\", \"epss\": 0.00135, \"percentile\": 0.02997}"},{"alert":0,"cve":"CVE-2026-44467","id":10574,"kind":"epss","observed_at":1793938800,"payload":"{\"date\": \"2026-11-05\", \"epss\": 0.00135, \"percentile\": 0.02991}"},{"alert":0,"cve":"CVE-2026-44467","id":8124,"kind":"epss","observed_at":1793809200,"payload":"{\"date\": \"2026-11-04\", \"epss\": 0.00135, \"percentile\": 0.02991}"},{"alert":0,"cve":"CVE-2026-44467","id":5906,"kind":"epss","observed_at":1793722800,"payload":"{\"date\": \"2026-11-03\", \"epss\": 0.00135, \"percentile\": 0.02985}"},{"alert":0,"cve":"CVE-2026-44467","id":3838,"kind":"epss","observed_at":1793679601,"payload":"{\"date\": \"2026-11-02\", \"epss\": 0.00135, \"percentile\": 0.02943}"},{"alert":1,"cve":"CVE-2026-44467","id":3704,"kind":"cna","observed_at":1793679601,"payload":"{\"containers\": {\"adp\": [{\"metrics\": [{\"other\": {\"content\": {\"id\": \"CVE-2026-44467\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"role\": \"CISA Coordinator\", \"timestamp\": \"2026-05-14T18:28:58.122969Z\", \"version\": \"2.0.3\"}, \"type\": \"ssvc\"}}], \"providerMetadata\": {\"dateUpdated\": \"2026-05-14T18:29:10.605Z\", \"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\"}, \"title\": \"CISA ADP Vulnrichment\"}], \"cna\": {\"affected\": [{\"product\": \"claude-code\", \"vendor\": \"anthropics\", \"versions\": [{\"status\": \"affected\", \"version\": \">= 1.2581.0, < 1.4304.0\"}]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"The Claude Desktop app gives you Claude Code with a graphical interface built for running multiple sessions side by side. From 1.2581.0 to before 1.4304.0, Claude Desktop's SSH remote development feature verified only whether a hostname existed in ~/.ssh/known_hosts without comparing the server's presented host key against the stored key. This allowed a network-positioned attacker to present an arbitrary SSH host key and have the connection silently accepted, enabling a man-in-the-middle attack on remote development sessions. Successful exploitation required the attacker to be in a network position to intercept SSH traffic (e.g., via ARP spoofing, rogue Wi-Fi, or DNS poisoning) and the target hostname to already have an entry in the victim's known_hosts file. This vulnerability is fixed in 1.4304.0.\"}], \"metrics\": [{\"cvssV4_0\": {\"attackComplexity\": \"LOW\", \"attackRequirements\": \"PRESENT\", \"attackVector\": \"ADJACENT\", \"baseScore\": 7.4, \"baseSeverity\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"subAvailabilityImpact\": \"NONE\", \"subConfidentialityImpact\": \"NONE\", \"subIntegrityImpact\": \"NONE\", \"userInteraction\": \"PASSIVE\", \"vectorString\": \"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N\", \"version\": \"4.0\", \"vulnAvailabilityImpact\": \"NONE\", \"vulnConfidentialityImpact\": \"HIGH\", \"vulnIntegrityImpact\": \"HIGH\"}}], \"problemTypes\": [{\"descriptions\": [{\"cweId\": \"CWE-297\", \"description\": \"CWE-297: Improper Validation of Certificate with Host Mismatch\", \"lang\": \"en\", \"type\": \"CWE\"}]}, {\"descriptions\": [{\"cweId\": \"CWE-322\", \"description\": \"CWE-322: Key Exchange without Entity Authentication\", \"lang\": \"en\", \"type\": \"CWE\"}]}], \"providerMetadata\": {\"dateUpdated\": \"2026-05-13T15:40:42.216Z\", \"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\"}, \"references\": [{\"name\": \"https://github.com/anthropics/claude-code/security/advisories/GHSA-3rwf-2g6p-c2f9\", \"tags\": [\"x_refsource_CONFIRM\"], \"url\": \"https://github.com/anthropics/claude-code/security/advisories/GHSA-3rwf-2g6p-c2f9\"}], \"source\": {\"advisory\": \"GHSA-3rwf-2g6p-c2f9\", \"discovery\": \"UNKNOWN\"}, \"title\": \"Claude Desktop: SSH Host Key Verification Bypass Allows Man-in-the-Middle Attack on Remote Sessions\"}}, \"cveMetadata\": {\"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"assignerShortName\": \"GitHub_M\", \"cveId\": \"CVE-2026-44467\", \"datePublished\": \"2026-05-13T15:40:42.216Z\", \"dateReserved\": \"2026-05-06T15:49:25.193Z\", \"dateUpdated\": \"2026-05-14T18:29:10.605Z\", \"state\": \"PUBLISHED\"}, \"dataType\": \"CVE_RECORD\", \"dataVersion\": \"5.2\"}"}],"record":{"affected":[{"product":"claude-code","vendor":"anthropics","versions":[{"status":"affected","version":">= 1.2581.0, < 1.4304.0"}]}],"cna":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-44467","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","timestamp":"2026-05-14T18:28:58.122969Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-05-14T18:29:10.605Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"product":"claude-code","vendor":"anthropics","versions":[{"status":"affected","version":">= 1.2581.0, < 1.4304.0"}]}],"descriptions":[{"lang":"en","value":"The Claude Desktop app gives you Claude Code with a graphical interface built for running multiple sessions side by side. From 1.2581.0 to before 1.4304.0, Claude Desktop's SSH remote development feature verified only whether a hostname existed in ~/.ssh/known_hosts without comparing the server's presented host key against the stored key. This allowed a network-positioned attacker to present an arbitrary SSH host key and have the connection silently accepted, enabling a man-in-the-middle attack on remote development sessions. Successful exploitation required the attacker to be in a network position to intercept SSH traffic (e.g., via ARP spoofing, rogue Wi-Fi, or DNS poisoning) and the target hostname to already have an entry in the victim's known_hosts file. This vulnerability is fixed in 1.4304.0."}],"metrics":[{"cvssV4_0":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"ADJACENT","baseScore":7.4,"baseSeverity":"HIGH","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"PASSIVE","vectorString":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-297","description":"CWE-297: Improper Validation of Certificate with Host Mismatch","lang":"en","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-322","description":"CWE-322: Key Exchange without Entity Authentication","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-05-13T15:40:42.216Z","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M"},"references":[{"name":"https://github.com/anthropics/claude-code/security/advisories/GHSA-3rwf-2g6p-c2f9","tags":["x_refsource_CONFIRM"],"url":"https://github.com/anthropics/claude-code/security/advisories/GHSA-3rwf-2g6p-c2f9"}],"source":{"advisory":"GHSA-3rwf-2g6p-c2f9","discovery":"UNKNOWN"},"title":"Claude Desktop: SSH Host Key Verification Bypass Allows Man-in-the-Middle Attack on Remote Sessions"}},"cveMetadata":{"assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","assignerShortName":"GitHub_M","cveId":"CVE-2026-44467","datePublished":"2026-05-13T15:40:42.216Z","dateReserved":"2026-05-06T15:49:25.193Z","dateUpdated":"2026-05-14T18:29:10.605Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"cna_checked":1794435601,"cve":"CVE-2026-44467","description":"The Claude Desktop app gives you Claude Code with a graphical interface built for running multiple sessions side by side. From 1.2581.0 to before 1.4304.0, Claude Desktop's SSH remote development feature verified only whether a hostname existed in ~/.ssh/known_hosts without comparing the server's presented host key against the stored key. This allowed a network-positioned attacker to present an arbitrary SSH host key and have the connection silently accepted, enabling a man-in-the-middle attack on remote development sessions. Successful exploitation required the attacker to be in a network position to intercept SSH traffic (e.g., via ARP spoofing, rogue Wi-Fi, or DNS poisoning) and the target hostname to already have an entry in the victim's known_hosts file. This vulnerability is fixed in 1.4304.0.","epss":{"date":"2026-11-12","epss":0.00135,"percentile":0.03026},"epss_checked":1794522003,"first_seen":1793669142,"kev":null,"kev_checked":1794522003,"products":"anthropics claude-code","references":["https://github.com/anthropics/claude-code/security/advisories/GHSA-3rwf-2g6p-c2f9"],"score":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"ADJACENT","baseScore":7.4,"baseSeverity":"HIGH","privilegesRequired":"NONE","provider":"GitHub_M","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"PASSIVE","vectorString":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH"},"solutions":"","state":"PUBLISHED","title":"Claude Desktop: SSH Host Key Verification Bypass Allows Man-in-the-Middle Attack on Remote Sessions","updated_at":1794500401,"workarounds":""},"sources":[{"canonical_url":"https://github.com/anthropics/claude-code/security/advisories/GHSA-3rwf-2g6p-c2f9","id":71,"publisher":"Claude Code advisories","title":"SSH Host Key Verification Bypass Allows Man-in-the-Middle Attack on Remote Sessions"}]}
