A flaw was found in OpenSSH. The authorized_keys "restrict" keyword was not applied to tunnel forwarding. When PermitTunnel is enabled, a restricted key can still open a tunnel.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

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Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://nvd.nist.gov/vuln/detail/CVE-2026-110928 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-110928 cve-icon
History

Thu, 15 Oct 2026 13:30:00 +0000

Type Values Removed Values Added
Description A flaw was found in OpenSSH. The authorized_keys "restrict" keyword was not applied to tunnel forwarding. When PermitTunnel is enabled, a restricted key can still open a tunnel.
Title openssh: openssh: authorized_keys restrict does not apply to tunnel forwarding
Weaknesses CWE-284
References
Metrics threat_severity

None

 cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N'}

threat_severity

Moderate

Projects

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cve-icon MITRE

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cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-10-15T00:00:00Z

Links: CVE-2026-110928 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses