CVE-2026-106587: CWE-843 Access of Resource Using Incompatible Type ('Type Confusion') in OpenBSD OpenSSH
Description
CVE-2026-106587 is a type confusion vulnerability in OpenSSH's sshd component before version 10.6. The issue arises because the configuration option value "none" is sometimes incorrectly interpreted as a filename instead of indicating that a feature is disabled. This can lead to unintended behavior in the sshd service.
CVSS v3.1
Score 3.6low
Affected software
OpenBSD
OpenSSH
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a type confusion (CWE-843) in OpenSSH's sshd prior to version 10.6, where the string "none" for certain configuration options is misinterpreted as a filename rather than a disabling indicator. This misinterpretation can cause sshd to access resources incorrectly, potentially leading to limited integrity and availability impacts.
Potential Impact
The vulnerability has a low severity with a CVSS score of 3.6. It requires local access with high attack complexity and low privileges, and does not require user interaction. The impact is limited to partial integrity and availability loss, with no confidentiality impact. There are no known exploits in the wild.
Mitigation Recommendations
A fix is available in OpenSSH version 10.6. Users should upgrade to version 10.6 or later to remediate this issue. Since no vendor advisory or patch links are provided, check the official OpenBSD or OpenSSH release notes for confirmation and update instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-10-06T21:01:44.466Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ac569462cdf04f656e0cf0d
Added to database: 10/06/2026, 21:33:58 UTC
Last enriched: 10/06/2026, 21:48:42 UTC
Last updated: 10/06/2026, 22:08:15 UTC
Views: 5
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