CVE-2026-55863 is a medium-severity missing authorization vulnerability in motioneye (pip), affecting versions < 0.44.0. It is fixed in 0.44.0.
Summary The ActionHandler.post() method in motionEye has no authentication decorator, allowing any unauthenticated attacker to trigger camera actions including snapshots, recording start/stop, and configured action scripts (PTZ controls, alarm triggers, etc.). Vulnerability Details File: motioneye/handlers/action.py, ActionHandler.post() line 36 CWE: CWE-862, Missing Authorization CVSS: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N = 5.3 Medium Vulnerable Code Compare with other handlers that correctly require authentication: Steps to Reproduce Deploy motionEye with at least one camera configured Send unauthenticated POST: Observe {} (HTTP 200) response, snapshot triggered without any credentials For action scripts (lock, unlock, alarmon, alarmoff, light_on, etc.): Impact Unauthenticated attacker can trigger camera snapshots on demand Unauthenticated attacker can start/stop video recording If action scripts are configured by admin: attacker can trigger PTZ movement, alarm control, lighting changes, physical security bypass Via remote cameras: SSRF by triggering action on a remote motionEye server Verification Dynamically confirmed on v0.43.1 in Docker lab, POST /action/2/snapshot with no credentials returns HTTP 200 {}. Server log shows the action was processed (failed only because motion daemon was not running for the test camera, not due to an auth rejection). Recommended Fix
The application does not perform an authorization check before performing a sensitive operation. Typical impact: unauthorized access to restricted functionality or data.
CVE-2026-55863 has a CVSS score of 5.3 (Medium). The vector is network-reachable, no privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment.
A fixed version is available (0.44.0). Upgrading removes the vulnerable code path.
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.
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 instead of chasing every advisory.
Kodem's runtime-powered SCA identifies whether CVE-2026-55863 is reachable in your applications. Explore open-source security for your team.
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Already deployed Kodem? See CVE-2026-55863 in your environment →Upgrade motioneye to 0.44.0 or later to resolve this vulnerability.
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CVE-2026-55863 is a medium-severity missing authorization vulnerability in motioneye (pip), affecting versions < 0.44.0. It is fixed in 0.44.0. The application does not perform an authorization check before performing a sensitive operation.
CVE-2026-55863 has a CVSS score of 5.3 (Medium). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
motioneye (pip) versions < 0.44.0 is affected.
Yes. CVE-2026-55863 is fixed in 0.44.0. Upgrade to this version or later.
Whether CVE-2026-55863 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.