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Apache MINA SSHD EUVDEUVD-2026-89753

| CVE-2026-94002 HIGH
Allocation of Resources Without Limits or Throttling (CWE-770)
2026-09-29 GHSA-mf93-r5x4-wxqr
Denial Of Service Apache Java Red Hat Suse
7.5
CVSS 3.1 · Vendor
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Severity by source

Vendor (CNA) PRIMARY
7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
vuln.today AI
7.5 HIGH

Malicious server floods a connected SFTP client with low complexity and no auth needed against the client (AV:N/AC:L/PR:N/UI:N); availability-only DoS gives A:H with C:N/I:N.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
SUSE
HIGH
qualitative
Red Hat
7.5 HIGH
qualitative

Primary rating from Vendor (CNA).

CVSS VectorVendor

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

4
Patch available
Sep 30, 2026 - 11:01 EUVD
CVSS changed
Sep 30, 2026 - 10:22 NVD
7.5 (HIGH)
Analysis Generated
Sep 29, 2026 - 20:16 vuln.today
CVE Published
Sep 29, 2026 - 18:25 oss-security
CRITICAL

Description PRE-NVD

Disclosed via oss-security. NVD scoring and full description are pending.

Articles & Coverage 2

News 14 New Java Vulnerabilities - 4 Critical, 10 High Severity Sep 30, 2026 News Critical DoS Memory Exhaustion in Apache MINA SSHD SFTP Client - CVE-2026-94002 Sep 30, 2026

AnalysisAI

Memory exhaustion in the Apache MINA SSHD SFTP client (DefaultSftpClient, sshd-sftp component) lets an attacker-controlled SFTP server drive a client application to run out of heap and crash, because the client stores unsolicited SFTP replies that it never matches to an outstanding request and therefore never releases. The flaw affects client-side deployments of Apache MINA SSHD versions 0.9.0 through 2.19.0 and 3.0.0-M1 through 3.0.0-M5; server-only deployments are not exposed, and the victim must initiate an outbound SFTP session to a malicious or compromised server. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Exploit
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Execution
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Vulnerability AssessmentAI

Exploitation Exploitation requires an application to use the Apache MINA SSHD sshd-sftp component's client implementation (DefaultSftpClient) and to establish an SFTP session with an attacker-controlled, malicious, or compromised SFTP server - the vulnerable party is the CLIENT, so a purely server-only deployment of MINA SSHD is NOT affected by this issue. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment This is a client-side denial-of-service vulnerability, not a server-side one - a critical distinction that raw CVSS obscures. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Upgrade to a fixed release: Apache MINA SSHD 2.20.0 (for the 2.x line) or 3.0.0-M6 (for the 3.0.0 milestone line), which validate that inbound SFTP replies correspond to an outstanding request - vendor-released patch versions 2.20.0 and 3.0.0-M6 are the authoritative fix. … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 24 hours, inventory all applications and services using Apache MINA SSHD client-side SFTP components, specifically versions 0.9.0 through 2.19.0 and 3.0.0-M1 through 3.0.0-M5, confirm whether any initiate outbound SFTP sessions to external or third-party servers, and restrict those connections to a strict allowlist of trusted SFTP endpoints; monitor client processes for heap growth and unexpected restarts. …

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Vendor StatusVendor

SUSE

Severity: Important
Product Status
openSUSE Tumbleweed Fixed
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS Affected
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS Affected
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS Affected

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EUVD-2026-89753 vulnerability details – vuln.today
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