{"api_version":"1","generated_at":"2026-09-30T21:46:00+00:00","cve":"CVE-2026-94029","urls":{"html":"https://cve.report/CVE-2026-94029","api":"https://cve.report/api/cve/CVE-2026-94029.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-94029","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-94029"},"summary":{"title":"Apache MINA SSHD: Memory exhaustion in SFTP v6 check-file-name/check-file-handle extension","description":"Server-side memory exhaustion in Apache MINA SSHD 1.0.0 to 2.19.0 and 3.0.0-M1 to 3.0.0-M5, component sshd-sftp, in the SFTP v6 check-file-name/check-file-handle extension. Apache MINA SSHD is a Java library for client-side and server-side SSH.\n\n\n\n\nUsing a very small \"block size\" (for instance 256, which is the minimum) on a huge file generates many (file size / block size) hashes. The resulting SFTP reply message was accumulated fully in memory server-side, which could, with a suitably large (possibly sparse) file exhaust the server-side memory, taking down the server.\n\n\n\n\nUsers are recommended to upgrade to version 2.20.0 or 3.0.0-M6, which fix this issue by imposing a maximum limit on the size of the reply. 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