Path traversal in LXD - CVE-2025-54293
Published: October 21, 2025 / Updated: April 9, 2026
Vulnerability identifier: #VU117420
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-54293
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences within the validLogFileName() function in lxd/instance_logs.go. A remote user can send a specially crafted HTTP request and read arbitrary files on the system.
Affected software
LXD
Debian Linux
lxd (Debian package)
incus (Debian package)
Debian Linux
lxd (Debian package)
incus (Debian package)
How to mitigate CVE-2025-54293
Install updates from vendor's website.
LXD - addressed in versions 5.0.5, 5.21.4, 6.5
lxd (Debian package) - addressed in versions 5.0.2+git20231211.1364ae4-9+deb13u1, 5.0.2-5+deb12u1
incus (Debian package) - update to 6.0.4-2+deb13u1
lxd (Debian package) - addressed in versions 5.0.2+git20231211.1364ae4-9+deb13u1, 5.0.2-5+deb12u1
incus (Debian package) - update to 6.0.4-2+deb13u1