Bug 2454951

Summary:	CVE-2026-35388 openssh: OpenSSH: Low integrity impact from unconfirmed proxy-mode multiplexing sessions [fedora-all]
Product:	[Fedora] Fedora	Reporter:	Jon Moroney <jmoroney>
Component:	openssh	Assignee:	Dmitry Belyavskiy <dbelyavs>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	low	Docs Contact:
Priority:	low
Version:	rawhide	CC:	crypto-team, dbelyavs, dwalsh, jjelen, lkundrak, mattias.ellert, tm
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---	Flags:	fedora-admin-xmlrpc: mirror+
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["c99939e8-a3bb-4ff6-8880-e903abe253a1"]}
Fixed In Version:	openssh-10.2p1-8.fc44 openssh-10.0p1-9.fc43	Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2026-04-25 01:49:02 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2454500

Description Jon Moroney 2026-04-03 22:01:34 UTC

Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

Comment 1 Fedora Update System 2026-04-20 12:40:13 UTC

FEDORA-2026-2cedc95af8 (openssh-10.0p1-9.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-2cedc95af8

Comment 2 Fedora Update System 2026-04-20 12:40:27 UTC

FEDORA-2026-93679cc7c2 (openssh-10.2p1-8.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-93679cc7c2

Comment 3 Fedora Update System 2026-04-22 10:01:51 UTC

FEDORA-2026-2cedc95af8 has been pushed to the Fedora 43 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-2cedc95af8`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-2cedc95af8

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 4 Fedora Update System 2026-04-22 11:23:54 UTC

FEDORA-2026-93679cc7c2 has been pushed to the Fedora 44 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-93679cc7c2`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-93679cc7c2

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 5 Fedora Update System 2026-04-25 01:49:02 UTC

FEDORA-2026-93679cc7c2 (openssh-10.2p1-8.fc44) has been pushed to the Fedora 44 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 6 Fedora Update System 2026-04-28 00:59:09 UTC

FEDORA-2026-2cedc95af8 (openssh-10.0p1-9.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.