CVE-2026-55488 is a high-severity path traversal vulnerability in motioneye (pip), affecting versions < 0.44.0. It is fixed in 0.44.0.
Summary mEye contains an absolute path traversal vulnerability in multiple media file handlers that allows an attacker to read arbitrary files from the filesystem. The affected handlers accept a user-controlled filename parameter and construct filesystem paths using os.path.join(). When an absolute path is supplied, Python discards the configured media directory and returns the attacker-supplied path directly. The application then bypasses Tornado's built-in path validation by overriding the relevant safety checks. As a result, an attacker can access files outside of the configured camera media directory, subject to the permissions of the motionEye process. Details The issue exists in the media playback and download functionality. The filename parameter is passed to mediafiles.getmediapath(): When path is an absolute path (e.g. /etc/motioneye/motion.conf), Python's os.path.join() discards targetdir entirely and returns the absolute path as-is. This would normally be caught by Tornado's StaticFileHandler path validation, but MoviePlaybackHandler explicitly overrides both safety checks (movieplayback.py lines 111-115): This allows reading any file on the filesystem that the motionEye process can access. The same path traversal exists in the movie download, picture download, and picture preview handlers: GET /movie/<cameraid>/download/<filename> GET /picture/<cameraid>/download/<filename> GET /picture/<camera_id>/preview/<filename> PoC Fix Do not allow absolute paths supplied by user input. Validate that the fully resolved canonical path remains within the configured camera media directory before serving a file. Additionally, Tornado’s built-in path validation should not be bypassed unless equivalent validation is performed by motionEye.
Input manipulates file paths to reach files outside the intended directory, such as configuration or credential files. Typical impact: unauthorized file read or write outside the intended directory.
pip
motioneye (< 0.44.0)motioneye → 0.44.0 (pip)Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
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CVE-2026-55488 is a high-severity path traversal vulnerability in motioneye (pip), affecting versions < 0.44.0. It is fixed in 0.44.0. Input manipulates file paths to reach files outside the intended directory, such as configuration or credential files.
motioneye (pip) versions < 0.44.0 is affected.
Yes. CVE-2026-55488 is fixed in 0.44.0. Upgrade to this version or later.
Whether CVE-2026-55488 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
Upgrade motioneye to 0.44.0 or later.