{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-94002", "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "state": "PUBLISHED", "assignerShortName": "apache", "dateReserved": "2026-09-19T14:20:51.289Z", "datePublished": "2026-09-30T09:37:01.922Z", "dateUpdated": "2026-09-30T10:14:15.211Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache", "dateUpdated": "2026-09-30T09:37:01.922Z"}, "title": "Apache MINA SSHD: Memory exhaustion in SFTP client via unsolicited SFTP replies", "problemTypes": [{"descriptions": [{"description": "CWE-770 Allocation of resources without limits or throttling", "lang": "en", "cweId": "CWE-770", "type": "CWE"}]}], "source": {"discovery": "EXTERNAL"}, "affected": [{"vendor": "Apache Software Foundation", "product": "Apache MINA SSHD", "packageURL": "pkg:maven/org.apache.sshd/sshd-sftp", "versions": [{"status": "affected", "version": "0.9.0", "lessThan": "2.20.0", "versionType": "maven"}, {"status": "affected", "version": "3.0.0-M1", "lessThan": "3.0.0-M6", "versionType": "maven"}], "defaultStatus": "unaffected", "collectionURL": "https://repo.maven.apache.org/maven2", "packageName": "org.apache.sshd:sshd-sftp"}], "descriptions": [{"value": "Possible memory exhaustion in SFTP clients (DefaultSftpClient) in component sshd-sftp in Apache MINA SSHD versions 0.9.0 to 2.19.0 and 3.0.0-M1 to 3.0.0-M5.\n\n\n\n\nApache \nMINA SSHD is a Java library for client-side and server-side SSH. The sshd-sftp component provides support for SFTP.\n\n\n\n\nThe SFTP client implementation, when receiving a reply, did not check that this reply corresponded to a request sent earlier. Unsolicited replies would be stored but never consumed. A malicious server could keep sending unsolicited replies until available memory in the client was exhausted.\n\n\n\n\nUsers are recommended to upgrade to version 2.20.0 or 3.0.0-M6, which fix this issue.", "lang": "en", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<div>Possible memory exhaustion in SFTP clients (DefaultSftpClient) in component sshd-sftp in Apache MINA SSHD versions 0.9.0 to 2.19.0 and 3.0.0-M1 to 3.0.0-M5.</div><div><br></div><div>Apache \nMINA SSHD is a Java library for client-side and server-side SSH. The sshd-sftp component provides support for SFTP.</div><div><br></div><div>The SFTP client implementation, when receiving a reply, did not check that this reply corresponded to a request sent earlier. Unsolicited replies would be stored but never consumed. A malicious server could keep sending unsolicited replies until available memory in the client was exhausted.</div><div><br></div>Users are recommended to upgrade to version 2.20.0 or 3.0.0-M6, which fix this issue."}]}], "references": [{"url": "https://lists.apache.org/thread.html/x2cb00kh4qvsq145tj2w4g3toy8cybld", "tags": ["vendor-advisory"]}], "metrics": [{"scenarios": [{"lang": "en", "value": "GENERAL"}], "format": "CVSS", "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseSeverity": "HIGH", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}}, {"other": {"type": "Textual description of severity", "content": {"text": "moderate"}}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "credits": [{"lang": "en", "value": "Ho1aAs <[email protected]>", "type": "finder"}], "x_generator": {"engine": "Vulnogram 1.0.3"}}, "adp": [{"title": "CVE Program Container", "references": [{"url": "http://www.openwall.com/lists/oss-security/2026/09/29/36"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-09-30T10:14:15.211Z"}}]}}

{}

{"affected": [{"affectedData": [{"collectionURL": "https://repo.maven.apache.org/maven2", "defaultStatus": "unaffected", "packageName": "org.apache.sshd:sshd-sftp", "packageURL": "pkg:maven/org.apache.sshd/sshd-sftp", "product": "Apache MINA SSHD", "vendor": "Apache Software Foundation", "versions": [{"lessThan": "2.20.0", "status": "affected", "version": "0.9.0", "versionType": "maven"}, {"lessThan": "3.0.0-M6", "status": "affected", "version": "3.0.0-M1", "versionType": "maven"}]}], "source": "[email protected]"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Possible memory exhaustion in SFTP clients (DefaultSftpClient) in component sshd-sftp in Apache MINA SSHD versions 0.9.0 to 2.19.0 and 3.0.0-M1 to 3.0.0-M5.\n\n\n\n\nApache \nMINA SSHD is a Java library for client-side and server-side SSH. The sshd-sftp component provides support for SFTP.\n\n\n\n\nThe SFTP client implementation, when receiving a reply, did not check that this reply corresponded to a request sent earlier. Unsolicited replies would be stored but never consumed. A malicious server could keep sending unsolicited replies until available memory in the client was exhausted.\n\n\n\n\nUsers are recommended to upgrade to version 2.20.0 or 3.0.0-M6, which fix this issue."}], "id": "CVE-2026-94002", "lastModified": "2026-09-30T11:16:47.810", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "[email protected]", "type": "Secondary"}]}, "published": "2026-09-30T10:17:17.877", "references": [{"source": "[email protected]", "url": "https://lists.apache.org/thread.html/x2cb00kh4qvsq145tj2w4g3toy8cybld"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2026/09/29/36"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-770"}], "source": "[email protected]", "type": "Secondary"}]}

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