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CVE-2026-94002

7.5 HIGH

Published 2026-09-30 · Updated 2026-09-30

AI risk analysis

Summary
The flaw allows memory exhaustion in SFTP clients when receiving unsolicited replies from malicious servers, potentially leading to denial of service. This affects Apache MINA SSHD versions 0.9.0 through 2.19.0 and 3.0.0-M1 through 3.0.0-M5.
Exploitability
Exploitation is relatively straightforward as a malicious server can continuously send unsolicited replies to exhaust client memory, requiring no authentication or privileged access.
Blast radius
The impact could affect any SFTP client using the affected Apache MINA SSHD library, potentially causing widespread service disruption across systems that connect to vulnerable SFTP servers.
Detection
No reliable host or network indicator is derivable from the published description.
Prioritized remediation
Upgrade to version 2.20.0 or 3.0.0-M6 which contain the fix for this memory exhaustion vulnerability.
sftpmemory-exhaustiondos

Analysis generated locally by garnet-coder (no data left the box). AI-assisted — verify against primary sources before acting.

NVD description

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. Apache MINA SSHD is a Java library for client-side and server-side SSH. The sshd-sftp component provides support for SFTP. 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. Users are recommended to upgrade to version 2.20.0 or 3.0.0-M6, which fix this issue.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses

CWE-770

All references

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

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