Allocation of Resources Without Limits or Throttling Affecting mina package, versions *


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.38% (30th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ECHOLATEST-MINA-20335144
  • published30 Sept 2026
  • disclosed30 Sept 2026

Introduced: 30 Sep 2026

NewCVE-2026-94029  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest mina.

NVD Description

Note: Versions mentioned in the description apply only to the upstream mina package and not the mina package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

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.

Using 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.

Users 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. Many SFTP implementations have a general limit on the size of SFTP messages anyway; typically 256kB as in OpenSSH or also in Apache MINA SSHD.

CVSS Base Scores

version 3.1