[El-errata] ELSA-2026-47756 Important: Oracle Linux 9 openssh security update

[Errata Announcements for Oracle Linux]

Oracle Linux Security Advisory ELSA-2026-47756

http://linux.oracle.com/errata/ELSA-2026-47756.html

The following updated rpms for Oracle Linux 9 have been uploaded to the Unbreakable Linux Network:

x86_64:
openssh-9.9p1-9.0.1.el9_8.x86_64.rpm
openssh-askpass-9.9p1-9.0.1.el9_8.x86_64.rpm
openssh-clients-9.9p1-9.0.1.el9_8.x86_64.rpm
openssh-keycat-9.9p1-9.0.1.el9_8.x86_64.rpm
openssh-server-9.9p1-9.0.1.el9_8.x86_64.rpm
pam_ssh_agent_auth-0.10.4-7.9.0.1.el9_8.x86_64.rpm

aarch64:
openssh-9.9p1-9.0.1.el9_8.aarch64.rpm
openssh-askpass-9.9p1-9.0.1.el9_8.aarch64.rpm
openssh-clients-9.9p1-9.0.1.el9_8.aarch64.rpm
openssh-keycat-9.9p1-9.0.1.el9_8.aarch64.rpm
openssh-server-9.9p1-9.0.1.el9_8.aarch64.rpm
pam_ssh_agent_auth-0.10.4-7.9.0.1.el9_8.aarch64.rpm


SRPMS:
http://oss.oracle.com/ol9/SRPMS-updates/openssh-9.9p1-9.0.1.el9_8.src.rpm

Related CVEs:

CVE-2026-55653
CVE-2026-55654
CVE-2026-55655
CVE-2026-59996
CVE-2026-60002




Description of changes:

[9.9p1-9.0.1]
- Replace unsupported ML-KEM hybrid algorithm skip logic with v9.9p1-23.el10_2 ML-KEM/NIST backport [Orabug: 39423076]
- Upstream references found with /usr/bin/ssh [Orabug: 37814929]

[9.9p1-9]
- CVE-2026-59996: Fix remote glob result of ".." causing files to be placed
  in unintended parent directories when scp performs remote-to-remote copy
  via the local host
  Resolves: RHEL-193178
- CVE-2026-60002: Fix use-after-free in cached hostkey during key re-exchange
  Resolves: RHEL-193024

[9.9p1-8]
- CVE-2026-55653: Fix double free in openssh DH-GEX client path during
  FIPS known-group validation that leads to client-side denial of service
  Resolves: RHEL-186439
- CVE-2026-55654: Fix heap out-of-bounds read during GSSAPI indicator
  cleanup due to missing NULL terminator
  Resolves: RHEL-185836
- CVE-2026-55655: Fix MITM of X11 forwarding via abstract UNIX socket
  pre-binding
  Resolves: RHEL-185854