Bug 2547207 (CVE-2026-106587)

Summary: CVE-2026-106587 openssh: OpenSSH: Improper access control via misinterpretation of disabled configuration options
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: low    
Version: unspecifiedKeywords: Security
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OS: Linux   
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A flaw was found in OpenSSH. When certain configuration options are set to "none" within a conditional block to disable a feature, the OpenSSH server daemon (sshd) incorrectly interprets the value as a literal file path rather than disabling the setting. A local attacker could exploit this issue by creating or manipulating a file named "none", potentially leading to improper access control enforcement or service disruption.
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Description OSIDB Bzimport 2026-10-06 21:31:22 UTC
In sshd in OpenSSH before 10.6, the value "none" for a configuration option is sometimes interpreted as a filename but was intended to mean that a feature is disabled.