CVE-2026-60002
Received Received - Intake

Use-After-Free in OpenSSH Client

Publication date: 2026-07-08

Last updated on: 2026-07-08

Assigner: MITRE

Description
ssh in OpenSSH before 10.4 can have a use-after-free when a server changes its host key during a key re-exchange. (This outcome occurs only on the client side.)

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Meta Information

Published
2026-07-08
Last Modified
2026-07-08
Generated
2026-07-08
AI Q&A
2026-07-08
EPSS Evaluated
N/A
NVD
CVE-2026-60002
EUVD
EUVD-2026-42146

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
openssh openssh to 10.4 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-416 The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Attack-Flow Graph

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Executive Summary

This vulnerability exists in OpenSSH versions before 10.4 and involves a use-after-free issue that occurs on the client side. Specifically, it happens when a server changes its host key during a key re-exchange process.

Impact Analysis

The vulnerability can lead to serious security impacts because it has a high base CVSS score of 7.7, indicating it is a high severity issue. It can compromise confidentiality and integrity, and cause a low level of availability impact on the client side when connecting to a server that changes its host key during key re-exchange.

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