Summary
OpenSSH is an SSH protocol implementation supported by a number of Linux, UNIX, and similar operating systems. It includes the core files necessary for both the OpenSSH client and server.
Security Fix(es):
* openssh: OpenSSH: SFTP security bypass due to command-line argument parsing flaw (CVE-2026-59997)
* openssh: OpenSSH: Undocumented GSSAPIStrictAcceptorCheck behavior impacts security in Windows Active Directory (CVE-2026-59998)
* openssh: OpenSSH: Denial of Service via excessive GSSAPI authentication attempts (CVE-2026-60000)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Fixed packages 6
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux · 9 | openssh | 9.9p1-13.el9_8.alma.1 |
| AlmaLinux · 9 | openssh-askpass | 9.9p1-13.el9_8.alma.1 |
| AlmaLinux · 9 | openssh-clients | 9.9p1-13.el9_8.alma.1 |
| AlmaLinux · 9 | openssh-keycat | 9.9p1-13.el9_8.alma.1 |
| AlmaLinux · 9 | openssh-server | 9.9p1-13.el9_8.alma.1 |
| AlmaLinux · 9 | pam_ssh_agent_auth | 0.10.4-8.13.el9_8.alma.1 |
Vulnerabilities 3
-
Medium 4.8
sshd in OpenSSH before 10.4 has an undocumented security-relevant behavior: GSSAPIStrictAcceptorCheck has no value if t…
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Medium 4.2
internal-sftp in sshd in OpenSSH before 10.4 recognizes only the first 9 command-line arguments, which can be important…
-
Low 3.7
sshd in OpenSSH before 10.4 allows remote attackers to cause a denial of service (resource consumption from excessive a…
References
-
report
https://access.redhat.com/security/cve/CVE-2026-59997
-
report
https://access.redhat.com/security/cve/CVE-2026-59998
-
report
https://access.redhat.com/security/cve/CVE-2026-60000
-
report
https://bugzilla.redhat.com/2497929
-
report
https://bugzilla.redhat.com/2497935
-
report
https://bugzilla.redhat.com/2497946
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advisory
https://errata.almalinux.org/9/ALSA-2026-85958.html