Bug 2555578

Summary: CVE-2026-106553 openssh: OpenSSH: Credential disclosure via failed GSSAPI authentication [fedora-all]
Product: [Fedora] Fedora Reporter: Ganesh <gnaik>
Component: opensshAssignee: Dmitry Belyavskiy <dbelyavs>
Status: NEW --- QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: low Docs Contact:
Priority: low    
Version: rawhideCC: crypto-team, dbelyavs, dwalsh, jjelen, mattias.ellert, tm
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---Flags: fedora-admin-xmlrpc: mirror+
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["e083c2a2-c832-423e-9c81-8e5b9d7c56b8"]}
Fixed In Version: Doc Type: ---
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Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On:    
Bug Blocks: 2547191, 2553033    

Description Ganesh 2026-10-19 13:41:47 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.

In sshd in OpenSSH before 10.6, credentials can incorrectly persist after failure of a GSSAPIAuthentication authentication attempt.

Comment 1 Ganesh 2026-10-19 13:55:47 UTC
*** Bug 2553373 has been marked as a duplicate of this bug. ***