openSUSE-SU-2026:21477-1: important: Security update for openssh

openSUSE security update: security update for openssh
-------------------------------------------------------------

Announcement ID: openSUSE-SU-2026:21477-1
Rating: important
References:

  * bsc#1271044
  * bsc#1271046
  * bsc#1271048
  * bsc#1271049
  * bsc#1271052
  * bsc#1271053
  * bsc#1271054
  * bsc#1271055



Cross-References:

  * CVE-2026-59995
  * CVE-2026-59996
  * CVE-2026-59997
  * CVE-2026-59998
  * CVE-2026-59999
  * CVE-2026-60000
  * CVE-2026-60001
  * CVE-2026-60002



CVSS scores:

  * CVE-2026-59995 ( SUSE ): 4.2 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L
  * CVE-2026-59995 ( SUSE ): 2.1 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
  * CVE-2026-59996 ( SUSE ): 4.2 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L
  * CVE-2026-59996 ( SUSE ): 2.1 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
  * CVE-2026-59997 ( SUSE ): 4.2 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
  * CVE-2026-59997 ( SUSE ): 2.1 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-59998 ( SUSE ): 4.8 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
  * CVE-2026-59998 ( SUSE ): 6.3 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-59999 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
  * CVE-2026-59999 ( SUSE ): 6 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-60000 ( SUSE ): 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2026-60000 ( SUSE ): 2.3 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
  * CVE-2026-60001 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
  * CVE-2026-60001 ( SUSE ): 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
  * CVE-2026-60002 ( SUSE ): 7.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
  * CVE-2026-60002 ( SUSE ): 7.5 CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N

Affected Products:

         openSUSE Leap 16.0

-------------------------------------------------------------

An update that solves 8 vulnerabilities and has 8 bug fixes can now be installed.

Description:

This update for openssh fixes the following issues:

- CVE-2026-59995: sftp: location of downloaded files not properly constrained when `sftp server:/path .` is used with
  an attacker-controlled server (bsc#1271044).
- CVE-2026-59996: scp: file placed in the parent directory of an intended target directory when copy occurs between two
  remote destinations (bsc#1271046).
- CVE-2026-59997: sshd: `internal-sftp` command lines are silently truncated after the 9th argument (bsc#1271048).
- CVE-2026-59998: sshd: undocumented security-relevant `GSSAPIStrictAcceptorCheck` behavior in Windows Active Directory
  is not documented (bsc#1271049).
- CVE-2026-59999: sshd: `DisableForwarding=yes` does not override `PermitTunnel=yes` (bsc#1271052).
- CVE-2026-60000: sshd: pre-authentication denial of service when GSSAPIAuthentication is enabled (bsc#1271053).
- CVE-2026-60001: sshd: minimum authentication delay is not honored (bsc#1271054).
- CVE-2026-60002: ssh: client-side use-after-free when a server changes its host key during a key reexchange
  (bsc#1271055).


Patch instructions:

   To install this openSUSE security update use the suse recommended installation methods
   like YaST online_update or "zypper patch".
   Alternatively you can run the command listed for your product:

- openSUSE Leap 16.0

   zypper in -t patch openSUSE-Leap-16.0-1388=1

Package List:

- openSUSE Leap 16.0:

  openssh-10.0p2-160000.7.1
  openssh-askpass-gnome-10.0p2-160000.7.1
  openssh-cavs-10.0p2-160000.7.1
  openssh-clients-10.0p2-160000.7.1
  openssh-common-10.0p2-160000.7.1
  openssh-helpers-10.0p2-160000.7.1
  openssh-server-10.0p2-160000.7.1
  openssh-server-config-rootlogin-10.0p2-160000.7.1

References:

  * https://www.suse.com/security/cve/CVE-2026-59995.html
  * https://www.suse.com/security/cve/CVE-2026-59996.html
  * https://www.suse.com/security/cve/CVE-2026-59997.html
  * https://www.suse.com/security/cve/CVE-2026-59998.html
  * https://www.suse.com/security/cve/CVE-2026-59999.html
  * https://www.suse.com/security/cve/CVE-2026-60000.html
  * https://www.suse.com/security/cve/CVE-2026-60001.html
  * https://www.suse.com/security/cve/CVE-2026-60002.html