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Vulnerability · Published Sep 15, 2026 · Assigned by GitHub_M

CVE-2026-46488motionEye: Authentication possible via password hash

Critical 9.1

In plain English

A critical-severity improper authentication in motioneye from motioneye-project. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)9.1Critical
Exploit odds (30 days)0.5%top 59.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

motionEye (mEye) is an online interface for a piece of software called "motion," which is a video surveillance program with motion detection. Prior to 0.44.0, motionEye accepts the client-controlled meye_username and meye_password_hash cookies as authentication material without server-side session validation. An unauthenticated attacker who knows a target username and corresponding hash can set the cookies manually or cause them to be loaded by submitting blank credentials through the switch-user authentication flow, after which the server authenticates the attacker as that user. The administrator username and password-hash value are stored in /etc/motioneye/motion.conf, which is globally readable by default, allowing a local shell user to obtain reusable administrator credential material. Successful impersonation can enable account lockout, password changes and persistence, data enumeration, data destruction, and data exfiltration. This issue is fixed in version 0.44.0.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
PyPImotioneye0.44.0GHSA-r3cw-c95m-wfh9
PyPImotioneye0.44.0PYSEC-2026-428

Affected products (as reported)

VendorProductVersions
motioneye-project motioneye < 0.44.0

Weakness: CWE-256, CWE-287, CWE-328, CWE-836 · Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

References