CVE-2026-94002CWE-770denial-of-service

CVE-2026-94002

High · published September 30, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
35.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00426 · 35.8th percentile
Weakness
CWE-770 · Allocation of Resources Without Limits or Throttling
Published
2026-09-30T14:17Z
References (2)
https://lists.apache.org/thread.html/x2cb00kh4qvsq145tj2w4g3toy8cybld · [email protected]http://www.openwall.com/lists/oss-security/2026/09/29/36 · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 01 OCT 03:50Z
    EPSS moved — → 0%
    epss
  • 30 SEP 09:37Z
    Apache MINA SSHD: Memory exhaustion in SFTP client via unsolicited SFTP replies
    cvelistv5