CVE-2026-44467

Published: Mag 13, 2026 Last Modified: Mag 13, 2026
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 7,4
Source: [email protected]
Attack Vector: adjacent
Attack Complexity: low
Privileges Required: none
User Interaction: passive
Confidentiality: N/A
Integrity: N/A
Availability: N/A

Description

AI Translation Available

The Claude Desktop app gives you Claude Code with a graphical interface built for running multiple sessions side by side. From 1.2581.0 to before 1.4304.0, Claude Desktop's SSH remote development feature verified only whether a hostname existed in ~/.ssh/known_hosts without comparing the server's presented host key against the stored key. This allowed a network-positioned attacker to present an arbitrary SSH host key and have the connection silently accepted, enabling a man-in-the-middle attack on remote development sessions. Successful exploitation required the attacker to be in a network position to intercept SSH traffic (e.g., via ARP spoofing, rogue Wi-Fi, or DNS poisoning) and the target hostname to already have an entry in the victim's known_hosts file. This vulnerability is fixed in 1.4304.0.

297

Improper Validation of Certificate with Host Mismatch

Incomplete
Abstraction: Variant Structure: Simple
Common Consequences
Security Scopes Affected:
Access Control Authentication Other
Potential Impacts:
Gain Privileges Or Assume Identity Other
Applicable Platforms
Technologies: Mobile, Not Technology-Specific, Web Based
Likelihood of Exploit: High
View CWE Details
322

Key Exchange without Entity Authentication

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Access Control Confidentiality
Potential Impacts:
Bypass Protection Mechanism Read Application Data
Applicable Platforms
All platforms may be affected
Likelihood of Exploit: High
View CWE Details
https://github.com/anthropics/claude-code/security/advisori…
https://github.com/anthropics/claude-code/security/advisories/GHSA-3rwf-2g6p-c2…