CVE-2026-49238
HighCVSS 8.4Exploitation Probability (EPSS)
Low risk37th percentile - higher than 37% of all known CVEs
Summary
W Canonical Multipass przed wersją 1.16.3 odkryto lukę w zabezpieczeniach, która pozwala na obejście ograniczeń ścieżek w funkcji validate_path. Luka ta umożliwia lokalnemu atakującemu z uprawnieniami roota w maszynie wirtualnej na dostęp do plików na systemie plików hosta.
Risk Assessment
Atakujący może uzyskać dostęp do dowolnych plików na systemie plików hosta, co prowadzi do ucieczki z maszyny wirtualnej i potencjalnego naruszenia danych organizacji.
Recommendation
Zaleca się aktualizację Canonical Multipass do wersji 1.16.3 lub nowszej, aby usunąć tę lukę oraz ograniczenie dostępu do maszyn wirtualnych dla użytkowników z uprawnieniami roota.
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- CVE-2026-124493Critical
SunEditor before 3.4.0 contains a stored cross-site scripting vulnerability in the DocumentType constructor that injects header textContent into innerHTML without HTML escaping. Attackers can store entity-encoded HTML in h1-h6 headers that executes JavaScript when editors using document:header mode initialize, enabling session cookie theft.
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OpenEMR before 8.3.0 contains a path traversal vulnerability in the RingCentral RCFaxClient disposeDocument() method of oe-module-faxsms that allows authenticated attackers to read and write arbitrary files via the file_path parameter. Attackers can use action=download to read credentials and source code, or action=setup with base64 content to write web-executable files for code execution.
Original NVD description (English source)
An issue was discovered in Canonical Multipass before version 1.16.3. The host-side SFTP server component (sshfs_server), which executes with root privileges on the host, contains a path containment bypass vulnerability within its validate_path function in src/sshfs_mount/sftp_server.cpp. The function performs a plain string prefix comparison on requested paths without path separator validation or dot-dot (..) normalization. A local attacker with root privileges inside a guest virtual machine can bypass the FUSE layer by injecting raw SFTP frames (such as an SSH_FXP_OPEN request) directly into the sshfs_server process stdin/stdout pipes via procfs. By supplying a path containing directory traversal sequences that match the allowed mount prefix, the attacker can force the host-side root process to resolve the traversal and open files outside the designated mount boundary. This allows a guest-side user to read arbitrary files on the host filesystem, resulting in a virtual machine escape.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

