SUSE-SU-2026:3605-1: important: Security update for openssh

OPENSUSE-SECURITY-UPDATES <[email protected]>
Newsgroups gmane.linux.suse.security.announce
Message-ID <178662427771.1658.4513405033397810947@430413e854a7> 
# Security update for openssh

Announcement ID: SUSE-SU-2026:3605-1  
Release Date: 2026-08-13T06:35:45Z  
Rating: important  
References:

  * bsc#1271044
  * bsc#1271046
  * bsc#1271048
  * bsc#1271049
  * bsc#1271052
  * bsc#1271053
  * bsc#1271054
  * bsc#1271055
  * jsc#PED-16473

  
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 ):  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-2026-59995 ( 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 ( NVD ):  4.2 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L
  * CVE-2026-59995 ( NVD ):  5.4 CVSS:3.1/AV:N/AC:L/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-2026-59996 ( 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 ( NVD ):  4.2 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L
  * CVE-2026-59996 ( NVD ):  5.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
  * 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-2026-59997 ( 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 ( NVD ):  4.2 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
  * CVE-2026-59997 ( NVD ):  5.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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-2026-59998 ( 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 ( NVD ):  6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
  * CVE-2026-59998 ( NVD ):  4.8 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
  * CVE-2026-59999 ( SUSE ):  6.0
    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-2026-59999 ( 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 ( NVD ):  5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
  * CVE-2026-59999 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
  * 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-2026-60000 ( 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 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-60000 ( NVD ):  3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/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-2026-60001 ( 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 ( NVD ):  6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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
  * 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 ( NVD ):  7.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
  * CVE-2026-60002 ( NVD ):  9.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

  
Affected Products:

  * Basesystem Module 15-SP7
  * Desktop Applications Module 15-SP7
  * openSUSE Leap 15.6
  * SUSE Linux Enterprise Desktop 15 SP7
  * SUSE Linux Enterprise Real Time 15 SP7
  * SUSE Linux Enterprise Server 15 SP6
  * SUSE Linux Enterprise Server 15 SP6 LTSS
  * SUSE Linux Enterprise Server 15 SP7
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6
  * SUSE Linux Enterprise Server for SAP Applications 15 SP7

  
  
An update that solves eight vulnerabilities and contains one feature can now be
installed.

## Description:

This update for openssh fixes the following issues:

  * Backported support for the mlkemx25519 key exchange from upstream
    (jsc#PED-16473).

  * 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 SUSE update use the SUSE recommended installation methods like
YaST online_update or "zypper patch".  
Alternatively you can run the command listed for your product:

  * Basesystem Module 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-3605=1

  * SUSE Linux Enterprise Server for SAP Applications 15 SP6  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-3605=1

  * Desktop Applications Module 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Desktop-Applications-15-SP7-2026-3605=1

  * SUSE Linux Enterprise Server 15 SP6 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-3605=1

  * openSUSE Leap 15.6  
    zypper in -t patch SUSE-2026-3605=1

## Package List:

  * Basesystem Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    * openssh-server-9.6p1-150600.6.49.1
    * openssh-helpers-debuginfo-9.6p1-150600.6.49.1
    * openssh-debugsource-9.6p1-150600.6.49.1
    * openssh-debuginfo-9.6p1-150600.6.49.1
    * openssh-common-9.6p1-150600.6.49.1
    * openssh-fips-9.6p1-150600.6.49.1
    * openssh-clients-debuginfo-9.6p1-150600.6.49.1
    * openssh-helpers-9.6p1-150600.6.49.1
    * openssh-clients-9.6p1-150600.6.49.1
    * openssh-server-config-disallow-rootlogin-9.6p1-150600.6.49.1
    * openssh-common-debuginfo-9.6p1-150600.6.49.1
    * openssh-server-debuginfo-9.6p1-150600.6.49.1
    * openssh-9.6p1-150600.6.49.1
  * SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64)
    * openssh-server-9.6p1-150600.6.49.1
    * openssh-askpass-gnome-debuginfo-9.6p1-150600.6.49.1
    * openssh-helpers-debuginfo-9.6p1-150600.6.49.1
    * openssh-debugsource-9.6p1-150600.6.49.1
    * openssh-debuginfo-9.6p1-150600.6.49.1
    * openssh-common-9.6p1-150600.6.49.1
    * openssh-fips-9.6p1-150600.6.49.1
    * openssh-clients-debuginfo-9.6p1-150600.6.49.1
    * openssh-clients-9.6p1-150600.6.49.1
    * openssh-helpers-9.6p1-150600.6.49.1
    * openssh-server-config-disallow-rootlogin-9.6p1-150600.6.49.1
    * openssh-common-debuginfo-9.6p1-150600.6.49.1
    * openssh-askpass-gnome-9.6p1-150600.6.49.1
    * openssh-server-debuginfo-9.6p1-150600.6.49.1
    * openssh-9.6p1-150600.6.49.1
    * openssh-askpass-gnome-debugsource-9.6p1-150600.6.49.1
  * openSUSE Leap 15.6 (aarch64 i586 ppc64le s390x x86_64)
    * openssh-cavs-9.6p1-150600.6.49.1
    * openssh-server-9.6p1-150600.6.49.1
    * openssh-askpass-gnome-debuginfo-9.6p1-150600.6.49.1
    * openssh-helpers-debuginfo-9.6p1-150600.6.49.1
    * openssh-debugsource-9.6p1-150600.6.49.1
    * openssh-debuginfo-9.6p1-150600.6.49.1
    * openssh-cavs-debuginfo-9.6p1-150600.6.49.1
    * openssh-common-9.6p1-150600.6.49.1
    * openssh-fips-9.6p1-150600.6.49.1
    * openssh-clients-debuginfo-9.6p1-150600.6.49.1
    * openssh-clients-9.6p1-150600.6.49.1
    * openssh-helpers-9.6p1-150600.6.49.1
    * openssh-server-config-disallow-rootlogin-9.6p1-150600.6.49.1
    * openssh-common-debuginfo-9.6p1-150600.6.49.1
    * openssh-server-debuginfo-9.6p1-150600.6.49.1
    * openssh-9.6p1-150600.6.49.1
    * openssh-askpass-gnome-debugsource-9.6p1-150600.6.49.1
    * openssh-askpass-gnome-9.6p1-150600.6.49.1
  * Desktop Applications Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    * openssh-askpass-gnome-debugsource-9.6p1-150600.6.49.1
    * openssh-askpass-gnome-9.6p1-150600.6.49.1
    * openssh-askpass-gnome-debuginfo-9.6p1-150600.6.49.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6 (ppc64le x86_64)
    * openssh-server-9.6p1-150600.6.49.1
    * openssh-askpass-gnome-debuginfo-9.6p1-150600.6.49.1
    * openssh-helpers-debuginfo-9.6p1-150600.6.49.1
    * openssh-debugsource-9.6p1-150600.6.49.1
    * openssh-debuginfo-9.6p1-150600.6.49.1
    * openssh-common-9.6p1-150600.6.49.1
    * openssh-fips-9.6p1-150600.6.49.1
    * openssh-clients-debuginfo-9.6p1-150600.6.49.1
    * openssh-clients-9.6p1-150600.6.49.1
    * openssh-helpers-9.6p1-150600.6.49.1
    * openssh-server-config-disallow-rootlogin-9.6p1-150600.6.49.1
    * openssh-common-debuginfo-9.6p1-150600.6.49.1
    * openssh-askpass-gnome-9.6p1-150600.6.49.1
    * openssh-server-debuginfo-9.6p1-150600.6.49.1
    * openssh-9.6p1-150600.6.49.1
    * openssh-askpass-gnome-debugsource-9.6p1-150600.6.49.1

## 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
  * https://bugzilla.suse.com/show_bug.cgi?id=1271044
  * https://bugzilla.suse.com/show_bug.cgi?id=1271046
  * https://bugzilla.suse.com/show_bug.cgi?id=1271048
  * https://bugzilla.suse.com/show_bug.cgi?id=1271049
  * https://bugzilla.suse.com/show_bug.cgi?id=1271052
  * https://bugzilla.suse.com/show_bug.cgi?id=1271053
  * https://bugzilla.suse.com/show_bug.cgi?id=1271054
  * https://bugzilla.suse.com/show_bug.cgi?id=1271055
  * https://jira.suse.com/browse/PED-16473
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