Advisory severityHigh7.5Apache Software Foundation

High [CVE-2026-94002] 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

This high-severity Apache Software Foundation advisory covers CVE-2026-94002 affecting Apache MINA SSHD.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-94002 Source published Sep 30, 2026Source updated Sep 30, 2026

VulniPulse record published Sep 30, 2026Record updated Sep 30, 2026

CVE-2026-94002

Affected products & platforms

Apache Software FoundationUnclassified

Open source advisory

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Summary

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.

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.

Affected versions

Apache MINA SSHD 0.9.0 before 2.20.0
Apache MINA SSHD 3.0.0-M1 before 3.0.0-M6

Official advisory · high-confidence parse· fetched 6 days ago·verify at source

Fixed versions

2.20.0
3.0.0-M6

Official advisory · high-confidence parse· fetched 6 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Users are recommended to upgrade to version 2.20.0 or 3.0.0-M6, which fix this issue.

Official advisory · high-confidence parse· fetched 6 days ago·verify at source

Sources

Official and corroborating records used to build this advisory.

Official vendor advisoryofficial
Official advisory page fetched and parsed; accepted detail fields are attributed to this page.
Apache Software Foundation
CVE.org CNA recordCVE.org
Independent CNA record used for near-real-time discovery and missed-CVE reconciliation. Discovered from the machine-readable feed https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/delta.json; this link opens the CVE.org record for CVE-2026-94002 instead of the raw feed document.
CVE Program

Cross-references

Validate CVE metadata against the authoritative registries.

CVE-2026-94002NVD CVE.org MITRE

Official resources

ASF Security — reporting & CVE process
Official documentation
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Apache project downloads (fixed releases)
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