Apache MINA SSHD: Memory exhaustion in SFTP client via unsolicited SFTP replies
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. Apache 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.
CVE-2026-94002
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-94002
Apache MINA SSHD
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "Apache Software Foundation",
"product": "Apache MINA SSHD",
"versions": [
{
"status": "affected",
"version": "0.9.0",
"lessThan": "2.20.0",
"versionType": "maven"
},
{
"status": "affected",
"version": "3.0.0-M1",
"lessThan": "3.0.0-M6",
"versionType": "maven"
}
],
"packageURL": "pkg:maven/org.apache.sshd/sshd-sftp",
"packageName": "org.apache.sshd:sshd-sftp",
"collectionURL": "https://repo.maven.apache.org/maven2",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-94002
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #4416 · Revision 1
- Added to Heist Feed
- Publisher date