Fedora alert FEDORA-2026-535a408db5 (openssh)

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[SECURITY] Fedora 43 Update: openssh-10.0p1-12.fc43
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Thu, 27 Aug 2026 01:13:06 +0000
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<20260827011306.ABDA51887794@bastion01.rdu3.fedoraproject.org>
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Article
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Fedora Update Notification
FEDORA-2026-535a408db5
2026-08-27 01:10:36.944546+00:00
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Name        : openssh
Product     : Fedora 43
Version     : 10.0p1
Release     : 12.fc43
URL         : http://www.openssh.com/portable.html
Summary     : An open source implementation of SSH protocol version 2
Description :
SSH (Secure SHell) is a program for logging into and executing
commands on a remote machine. SSH is intended to replace rlogin and
rsh, and to provide secure encrypted communications between two
untrusted hosts over an insecure network. X11 connections and
arbitrary TCP/IP ports can also be forwarded over the secure channel.

OpenSSH is OpenBSD's version of the last free version of SSH, bringing
it up to date in terms of security and features.

This package includes the core files necessary for both the OpenSSH
client and server. To make this package useful, you should also
install openssh-clients, openssh-server, or both.

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Update Information:

Fix CVE-2026-59995 OpenSSH: sftp client allows attacker to control downloaded
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ChangeLog:

* Wed Aug 19 2026 Dmitry Belyavskiy <dbelyavs@redhat.com> - 10.0p1-12
- Fix CVE-2026-59995 OpenSSH: sftp client allows attacker to control downloaded
  file location
- Fix CVE-2026-59999 and CVE-2026-73283: Security bypass due to incorrect
  handling of forwarding and tunneling options
- Fix CVE-2026-73282: avoid potential realloc use-after-free in the client if a
  remote forwarding is added via the local session multiplexing socket while a
  remote forwarding open request is pending with the server.
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2026-535a408db5' at the command
line. For more information, refer to the dnf documentation available at
http://dnf.readthedocs.io/en/latest/command_ref.html#upgr...

All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
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