Upstream information

CVE-2026-94029 at MITRE

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.




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.

SUSE information

Overall state of this security issue: Pending

This issue is currently rated as having moderate severity.

CVSS v3 Scores
CVSS detail CNA (Apache Software Foundation) SUSE
Base Score 6.5 6.5
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network Network
Attack Complexity Low Low
Privileges Required Low Low
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact None None
Integrity Impact None None
Availability Impact High High
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entry: 1283346 [NEW]

No SUSE Security Announcements cross referenced.

List of packages in QA

Product(s) Package(s)
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS
  • apache-sshd >= 2.20.0-150200.5.19.1
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
  • apache-sshd >= 2.20.0-150200.5.19.1
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS
  • apache-sshd >= 2.20.0-150200.5.19.1
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
  • apache-sshd >= 2.20.0-150200.5.19.1
SUSE Linux Enterprise Module for Development Tools 15 SP7
  • apache-sshd >= 2.20.0-150200.5.19.1
SUSE Linux Enterprise Server 15 SP7
  • apache-sshd >= 2.20.0-150200.5.19.1
SUSE Linux Enterprise Desktop 15 SP7
  • apache-sshd >= 2.20.0-150200.5.19.1
SUSE Linux Enterprise Server for SAP Applications 15 SP7
  • apache-sshd >= 2.20.0-150200.5.19.1
SUSE Linux Enterprise Server 15 SP4-LTSS
  • apache-sshd >= 2.20.0-150200.5.19.1
SUSE Linux Enterprise Server 15 SP4-LTSS
  • apache-sshd >= 2.20.0-150200.5.19.1
SUSE Linux Enterprise Server 15 SP5-LTSS
  • apache-sshd >= 2.20.0-150200.5.19.1
SUSE Linux Enterprise Server 15 SP5-LTSS
  • apache-sshd >= 2.20.0-150200.5.19.1
SUSE Linux Enterprise Server 15 SP6-LTSS
  • apache-sshd >= 2.20.0-150200.5.19.1
SUSE Linux Enterprise Server 15 SP6-LTSS
  • apache-sshd >= 2.20.0-150200.5.19.1
SUSE Linux Enterprise Server for SAP Applications 15 SP4
  • apache-sshd >= 2.20.0-150200.5.19.1
SUSE Linux Enterprise Server for SAP Applications 15 SP5
  • apache-sshd >= 2.20.0-150200.5.19.1
SUSE Linux Enterprise Server for SAP Applications 15 SP6
  • apache-sshd >= 2.20.0-150200.5.19.1

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Linux Enterprise Desktop 15 SP7 apache-sshd In progress
SUSE Linux Enterprise Module for Development Tools 15 SP7 apache-sshd In progress
SUSE Linux Enterprise Server 15 SP7 apache-sshd In progress
SUSE Linux Enterprise Server for SAP Applications 15 SP7 apache-sshd In progress
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS apache-sshd In progress
SUSE Linux Enterprise High Performance Computing 15 SP5 apache-sshd Affected
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS apache-sshd In progress
SUSE Linux Enterprise Module for Development Tools 15 SP4 apache-sshd Affected
SUSE Linux Enterprise Module for Development Tools 15 SP5 apache-sshd Affected
SUSE Linux Enterprise Module for Development Tools 15 SP6 apache-sshd Affected
SUSE Linux Enterprise Server 15 SP4 apache-sshd Affected
SUSE Linux Enterprise Server 15 SP4-LTSS apache-sshd In progress
SUSE Linux Enterprise Server 15 SP5 apache-sshd Affected
SUSE Linux Enterprise Server 15 SP5-LTSS apache-sshd In progress
SUSE Linux Enterprise Server 15 SP6 apache-sshd Affected
SUSE Linux Enterprise Server 15 SP6-LTSS apache-sshd In progress
SUSE Linux Enterprise Server for SAP Applications 15 SP4 apache-sshd In progress
SUSE Linux Enterprise Server for SAP Applications 15 SP5 apache-sshd In progress
SUSE Linux Enterprise Server for SAP Applications 15 SP6 apache-sshd In progress
Products past their end of life and not receiving proactive updates anymore.
SUSE Enterprise Storage 7.1 apache-sshd Affected
SUSE Linux Enterprise Desktop 15 SP3 apache-sshd Affected
SUSE Linux Enterprise Desktop 15 SP4 apache-sshd Affected
SUSE Linux Enterprise Desktop 15 SP5 apache-sshd Affected
SUSE Linux Enterprise Desktop 15 SP6 apache-sshd Affected
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS apache-sshd Affected
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS apache-sshd Affected
SUSE Linux Enterprise High Performance Computing 15 SP3 apache-sshd Affected
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS apache-sshd Affected
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS apache-sshd Affected
SUSE Linux Enterprise High Performance Computing 15 SP4 apache-sshd Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS apache-sshd In progress
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS apache-sshd In progress
SUSE Linux Enterprise Module for Development Tools 15 SP3 apache-sshd Affected
SUSE Linux Enterprise Real Time 15 SP3 apache-sshd Affected
SUSE Linux Enterprise Real Time 15 SP4 apache-sshd Affected
SUSE Linux Enterprise Server 15 SP2-BCL apache-sshd Affected
SUSE Linux Enterprise Server 15 SP2-LTSS apache-sshd Affected
SUSE Linux Enterprise Server 15 SP3 apache-sshd Affected
SUSE Linux Enterprise Server 15 SP3-BCL apache-sshd Affected
SUSE Linux Enterprise Server 15 SP3-LTSS apache-sshd Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP2 apache-sshd Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP3 apache-sshd Affected
SUSE Manager Proxy 4.2 apache-sshd Affected
SUSE Manager Proxy 4.3 apache-sshd Affected
SUSE Manager Retail Branch Server 4.2 apache-sshd Affected
SUSE Manager Retail Branch Server 4.3 apache-sshd Affected
SUSE Manager Server 4.2 apache-sshd Affected
SUSE Manager Server 4.3 apache-sshd Affected
openSUSE Leap 15.4 apache-sshd Affected
openSUSE Leap 15.5 apache-sshd Affected
openSUSE Leap 15.6 apache-sshd Affected

SUSE Timeline for this CVE

CVE page created: Wed Sep 30 15:02:56 2026
CVE page last modified: Wed Sep 30 19:58:30 2026