Apache MINA SSHD: Memory exhaustion DoS via unbounded SCP command line read
Uncontrolled resource consumption in component ssd-scp in Apache MINA SSHD versions up to 2.19.0 or 3.0.0-M1 to 3.0.0-M5. Apache MINA SSHD is a Java library for client-side and server-side SSH. Component sshd-scp of Apache MINA SSHD provides a Java implementation of SCP. The SCP command protocol is line-oriented with LF-terminated lines. The protocol handler in sshd-scp did not impose any limit on the length of such protocol lines. A malicious peer just sending a junk command containing a never-ending sequence of characters but never a LF would cause the receiver to allocate memory to store this whole junk command, exhausting memory and crashing the application with an OutOfMemoryError. Users are recommended to upgrade to version 2.20.0 or 3.0.0-M6, which fix this issue by enforcing an upper limit on the length of SCP protocol lines.
CVE-2026-93996
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-2026-93996
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",
"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-scp",
"packageName": "org.apache.sshd:sshd-scp",
"collectionURL": "https://repo.maven.apache.org/maven2",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-93996
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #4415 · Revision 1
- Added to Heist Feed
- Publisher date