CLEANSTART-2026-WY77474: Possible memory exhaustion in SFTP clients (DefaultSftpClient) in component sshd-sftp in Apache MINA SSHD versions 0

Q: Which Apache NiFi deployments are exposed to this issue?

The available data identifies the affected software as the cleanstart/apache-nifi package, but it does not provide affected Apache NiFi versions or indicate which NiFi configurations use the vulnerable SFTP client.

Q: What is the likely impact of successful exploitation?

Successful exploitation may cause memory exhaustion in DefaultSftpClient, resulting in an availability impact. The supplied severity vector indicates network-based exploitation with low attack complexity, no privileges, and no user interaction required.

Q: Can I determine whether a specific deployment is affected from the provided version information?

No. The version information is incomplete and only states Apache MINA SSHD versions 0, so it cannot be used to confirm whether a particular deployed version is vulnerable.

Published Nov 11, 2026

Updated

Security vulnerability affects the apache-nifi package. Possible memory exhaustion in SFTP clients (DefaultSftpClient) in component sshd-sftp in Apache MINA SSHD versions 0.

Affected Software

1 affected componentFixes available

cleanstart/apache-nifi<2.11.0-r3

2.11.0-r3

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade cleanstart/apache-nifi to a version that resolves this vulnerability.
Fixed in 2.11.0-r3

Event History

Nov 11, 2026

Advisory Published

via OSV·12:38 AM

Data Sourced

via OSV·12:38 AM

DescriptionSeverityAffected Software

Child vulnerabilities

Contains the following vulnerabilities.

CVE-2026-94002

Frequently Asked Questions

Which Apache NiFi deployments are exposed to this issue?

The available data identifies the affected software as the cleanstart/apache-nifi package, but it does not provide affected Apache NiFi versions or indicate which NiFi configurations use the vulnerable SFTP client.

What is the likely impact of successful exploitation?

Successful exploitation may cause memory exhaustion in DefaultSftpClient, resulting in an availability impact. The supplied severity vector indicates network-based exploitation with low attack complexity, no privileges, and no user interaction required.

Can I determine whether a specific deployment is affected from the provided version information?

No. The version information is incomplete and only states Apache MINA SSHD versions 0, so it cannot be used to confirm whether a particular deployed version is vulnerable.

CLEANSTART-2026-WY77474: Possible memory exhaustion in SFTP clients (DefaultSftpClient) in component sshd-sftp in Apache MINA SSHD versions 0

Affected Software

Remediation

Event History

Child vulnerabilities

Frequently Asked Questions

Which Apache NiFi deployments are exposed to this issue?

What is the likely impact of successful exploitation?

Can I determine whether a specific deployment is affected from the provided version information?

Company

Resources

Contact

Frequently Asked Questions

Which Apache NiFi deployments are exposed to this issue?

What is the likely impact of successful exploitation?

Can I determine whether a specific deployment is affected from the provided version information?