CVE-2026-62967
HighCVSS 8.1Exploitation Probability (EPSS)
Low risk31th percentile - higher than 31% of all known CVEs
Summary
In ZTNET before 0.8.0, any authenticated low-privilege user can permanently deactivate another account, including an administrator, via POST /api/auth/user/invalidateUser. The handler checks only that a session exists and does not compare session.user.id with the client-supplied userId, so supplying the victim's userId and a non-matching deviceId sets the target account's isActive to false and login is refused. The issue is fixed in version 0.8.0.
Risk Assessment
An attacker with a normal account can lock out administrators and any targeted users, disrupting organization management and denying access. This can paralyze administration and make the service unavailable.
Recommendation
Update ZTNET to version 0.8.0 or later. Until then, monitor calls to the /api/auth/user/invalidateUser endpoint and restrict access to the application.
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Original NVD description (English source)
ZTNET is a ZeroTier web UI for private controllers with multiuser and organization support. Prior to 0.8.0, any authenticated low-privilege user can permanently deactivate another account, including an administrator, through `POST /api/auth/user/invalidateUser`. In `src/pages/api/auth/user/invalidateUser.ts`, `getServerSession` checks only that a session exists and does not compare `session.user.id` with the client-supplied `userId`. Supplying a victim's `userId` and a `deviceId` for which no matching pair exists in `UserDevice` makes the handler set the target account's `isActive` to false. Login is then refused by `src/server/auth.ts` with `account-expired`. An attacker needs only a normal authenticated account and the victim's user ID, which may be obtainable from member lists, UI responses, logs, or other application metadata. This can lock administrators out, disrupt organization management, and deny access to any targeted user. This issue is fixed in version 0.8.0.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS