CVE-2026-94002
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.
- Score
- CVSS 3.1 7.5 High
- Status
- Awaiting Analysis - security@apache.org
- Published
- 2026-09-30
- Last modified
- 2026-09-30
- Weaknesses
- CWE-770
Affected products
References
- https://lists.apache.org/thread.html/x2cb00kh4qvsq145tj2w4g3toy8cybld
- http://www.openwall.com/lists/oss-security/2026/09/29/36
