CVE-2026-59997

EUVD-2026-42139
internal-sftp in sshd in OpenSSH before 10.4 recognizes only the first 9 command-line arguments, which can be important if a later command-line argument would have helped to ensure the intended security properties of an SFTP connection.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
4.2 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 7.23%
Affected Products (NVD)
VendorProductVersion
openbsdopenssh
𝑥
< 10.4
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
openssh
bookworm
postponed
bookworm (security)
vulnerable
bullseye
postponed
bullseye (security)
vulnerable
forky
1:10.4p1-4
fixed
sid
1:10.4p1-4
fixed
trixie
no-dsa
trixie (security)
vulnerable
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
openssh
bionic
needs-triage
focal
needs-triage
jammy
Fixed 1:8.9p1-3ubuntu0.16
released
noble
Fixed 1:9.6p1-3ubuntu13.18
released
questing
ignored
resolute
Fixed 1:10.2p1-2ubuntu3.4
released
trusty
needs-triage
xenial
needs-triage
openssh-ssh1
bionic
ignored
focal
ignored
jammy
ignored
noble
ignored
questing
ignored
resolute
ignored
Azure Linux logo
Azure Linux Releases
Azure Package
Release
openssh
Azure Linux 3.0
0:9.8p1-9.azl3
fixed
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://marc.info/?l=openssh-unix-dev&m=178333966933090&w=2
https://www.openssh.org/releasenotes.html#10.4p1
https://www.openwall.com/lists/oss-security/2026/07/06/5