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Fencer Intel
high 7.5

CVE-2026-94002 json

Apache MINA SSHD: Memory exhaustion in SFTP client via unsolicited SFTP replies

published last mo. modified last mo. also EUVD-2026-89753

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 30%
public exploits
0
none known

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.

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.

Patch / fix

  • Apache Software Foundation Apache MINA SSHD 2.20.0, 3.0.0-M6
  • libmina-sshd-java Debian 14 2.20.1-1

debian advisories DEBIAN-CVE-2026-94002

  • apache-sshd SLES for SAP 15 SP6, SLES for SAP 15 SP5, SLES for SAP 15 SP4 +8 more 2.20.0-150200.5.19.1

suse advisories SUSE-SU-2026:4622-1

  • apache-sshd openSUSE Tumbleweed 2.20.0-1.1

opensuse advisories openSUSE-SU-2026:11940-1

Is CVE-2026-94002 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-94002 updated cvss 7.5

org.apache.sshd/sshd-sftp: Apache MINA SSHD: Denial of Service via unsolicited SFTP replies

  • Red Hat build of Apache Camel 4 for Quarkus 3 sshd-sftp 2.17.1.redhat-00001 Red Hat build of Apache Camel for Spring Boot 4 sshd-sftp 2.17.1.redhat-00001 Red Hat build of Apicurio Registry 3 sshd-sftp 2.17.1.redhat-00001
    affected: workaround, no fix available
  • Red Hat Build of Apache Camel 3.33.4.redhat sshd-sftp 2.20.0.redhat-00003
    fixed: vendor fix RHSA-2026:83670
  • Red Hat Build of Apache Camel 3.33.4.redhat jimfs 1.1, jna 5.8.0, bcel 6.7.0, gax 2.74.1, icu4j 78.2, joni 2.2.6, +1616 more
    not affected: vulnerable code not present
  • Red Hat Fuse 7 sshd-sftp 2.17.1.redhat-00001
    not affected: vulnerable code not in execute path

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
last mo.

Exploit prediction

0.36% chance of exploitation in the next 30 days, higher than 30% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

  • Apache Software Foundation Apache MINA SSHD

Classification

Weakness
  • CWE-770 Allocation of Resources Without Limits or Throttling

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.