CVE-2026-93996: Apache MINA SSHD · Unthrottled Resource Allocation
Affects Apache MINA SSHDSource CVE Database V5
Not known to be exploited · CVSS 6.5 Medium : upgrade to 3.0.0-M6 or 2.20.0 when convenient.
Data as of 13 Nov 2026, 23:54 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 25% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- CISA SSVC
- Exploitation
- No evidence of active exploitation and no public proof of concept
- Automatable
- Attackers cannot reliably automate steps 1–4 of the kill chain
- Technical impact
- Limited control over the software or limited information exposure
CISA SSVC assessment, 2026-09-30.
- Patch
- Available – fixed in 3.0.0-M6, 2.20.0
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 30 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 14 Nov 2026.
What to do
Upgrade Apache to 3.0.0-M6 or 2.20.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Apache Software FoundationApache MINA SSHD | Affected
| Fixed in
|
| Apache Software FoundationApache MINA SSHD | Affected
| Fixed in
|
MavenApache Software Foundation/org.apache.sshd:sshd-scppkg:maven/Apache Software Foundation/org.apache.sshd:sshd-scpOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Users should upgrade Apache MINA SSHD to version 2.20.0 or 3.0.0-M6 or later, where the vulnerability is fixed by enforcing an upper limit on SCP protocol line length. No other mitigation is indicated or required.
Description
CVE-2026-93996 is a vulnerability in Apache MINA SSHD's sshd-scp component that allows uncontrolled resource consumption. The SCP protocol handler did not limit the length of protocol lines, enabling a malicious peer to send a never-ending line without line feed characters. This causes the receiver to allocate excessive memory, potentially leading to an OutOfMemoryError and application crash. Versions up to 2.19.0 and from 3.0.0-M1 to 3.0.0-M5 are affected. Upgrading to versions 2.20.0 or 3.0.0-M6 mitigates the issue by enforcing an upper limit on SCP protocol line length.