CVE-2026-44467
MediumCVSS 6.8Summary
Aplikacja Claude Desktop w wersjach od 1.2581.0 do przed 1.4304.0 miała lukę w funkcji zdalnego rozwoju SSH, która weryfikowała jedynie istnienie nazwy hosta w pliku ~/.ssh/known_hosts, nie porównując klucza hosta serwera z zapisanym kluczem. To umożliwiało atakującemu w pozycji sieciowej przedstawienie dowolnego klucza hosta SSH, co mogło prowadzić do ataku typu man-in-the-middle na sesje zdalnego rozwoju.
Risk Assessment
Organizacja narażona jest na ataki man-in-the-middle, co może prowadzić do przechwytywania danych i nieautoryzowanego dostępu do systemów. Wymaga to szczególnej uwagi w kontekście bezpieczeństwa komunikacji zdalnej.
Recommendation
Zaleca się aktualizację aplikacji Claude Desktop do wersji 1.4304.0 lub nowszej, aby usunąć tę podatność. Dodatkowo, warto przeprowadzić audyt konfiguracji SSH oraz monitorować ruch sieciowy w celu wykrycia potencjalnych ataków.
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Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

