CVE-2026-73281: CWE-669 Incorrect Resource Transfer Between Spheres in OpenBSD OpenSSH
In ssh-agent in OpenSSH before 10.5, some operations can occur remotely but were intended to occur only locally, including operations that add tokens or use keys. This is caused by misinteraction between agent locking and the [email protected] extension.
AI Analysis
Technical Summary
In OpenSSH versions prior to 10.5, ssh-agent contains a vulnerability (CWE-669) where operations that should only occur locally, such as adding tokens or using keys, can be performed remotely due to a misinteraction between agent locking mechanisms and the [email protected] extension. This incorrect resource transfer between security spheres could allow limited integrity impact without affecting confidentiality or availability. The vulnerability is assigned CVE-2026-73281 with a CVSS 3.1 base score of 3.5.
Potential Impact
The vulnerability may allow an attacker with low privileges and network access to perform certain ssh-agent operations remotely that were intended to be local only. This could lead to limited integrity impact, such as unauthorized use of keys or addition of tokens. There is no impact on confidentiality or availability according to the CVSS vector. No known exploits are reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should monitor OpenBSD and OpenSSH advisories for updates. No specific temporary mitigations are provided in the available data.
CVE-2026-73281: CWE-669 Incorrect Resource Transfer Between Spheres in OpenBSD OpenSSH
Description
In ssh-agent in OpenSSH before 10.5, some operations can occur remotely but were intended to occur only locally, including operations that add tokens or use keys. This is caused by misinteraction between agent locking and the [email protected] extension.
CVSS v3.1
Score 3.5low
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
In OpenSSH versions prior to 10.5, ssh-agent contains a vulnerability (CWE-669) where operations that should only occur locally, such as adding tokens or using keys, can be performed remotely due to a misinteraction between agent locking mechanisms and the [email protected] extension. This incorrect resource transfer between security spheres could allow limited integrity impact without affecting confidentiality or availability. The vulnerability is assigned CVE-2026-73281 with a CVSS 3.1 base score of 3.5.
Potential Impact
The vulnerability may allow an attacker with low privileges and network access to perform certain ssh-agent operations remotely that were intended to be local only. This could lead to limited integrity impact, such as unauthorized use of keys or addition of tokens. There is no impact on confidentiality or availability according to the CVSS vector. No known exploits are reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should monitor OpenBSD and OpenSSH advisories for updates. No specific temporary mitigations are provided in the available data.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-08-11T19:10:32.710Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a7b77a2bf8831d5394b40cd
Added to database: 08/11/2026, 19:27:30 UTC
Last enriched: 08/11/2026, 19:42:43 UTC
Last updated: 08/11/2026, 20:26:54 UTC
Views: 4
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