{"id":"CVE-2026-107813","published":"2026-10-09T16:17:26.007","lastModified":"2026-10-09T18:17:02.927","description":"Nginx UI is a web user interface for the Nginx web server. From 2.0.0 until 2.5.0, the api/cluster router exposes node and namespace mutation operations and cluster-wide Nginx reload or restart operations with AuthRequired but without RequireSecureSession. An authenticated OTP-enabled user possessing a stolen or persisted JWT can therefore perform node CRUD, read or replace node credentials, change namespaces, and invoke nodes/reload_nginx or nodes/restart_nginx without a fresh second-factor step-up. This issue is an incomplete fix for CVE-2026-84315 and is fixed in version 2.5.0.","cvssScore":8.8,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwes":["CWE-862"],"vendors":[],"products":[],"references":[{"url":"https://github.com/0xJacky/nginx-ui/commit/a3999bd78a3b97ab22e6b5e9fd478ac57598a954","tags":[]},{"url":"https://github.com/0xJacky/nginx-ui/releases/tag/v2.5.0","tags":[]},{"url":"https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-h246-wpgf-vmq5","tags":[]}],"exploitRefs":[{"url":"https://github.com/0xJacky/nginx-ui/commit/a3999bd78a3b97ab22e6b5e9fd478ac57598a954","tags":[]},{"url":"https://github.com/0xJacky/nginx-ui/releases/tag/v2.5.0","tags":[]},{"url":"https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-h246-wpgf-vmq5","tags":[]}],"hasPoc":true,"ai":{"summary":"Nginx UI allows authenticated users with stolen JWT tokens to perform critical cluster operations without requiring a second-factor authentication step, enabling unauthorized node management and Nginx reloads/restarts. This represents a significant privilege escalation vulnerability where attackers can bypass secure session requirements.","exploitability":"Exploitation is moderately easy for an attacker who has obtained a valid JWT token from an OTP-enabled user, requiring only the ability to make authenticated API requests to the affected endpoints without needing fresh second-factor authentication.","blast_radius":"The impact could be severe across multiple Nginx nodes, allowing attackers to modify configurations, reload or restart services, potentially causing service disruption or enabling further attacks through compromised node credentials.","remediation":"Upgrade to version 2.5.0 or later to address this authentication bypass vulnerability.","detection":"Monitor for unauthorized API calls to /api/cluster/nodes/reload_nginx and /api/cluster/nodes/restart_nginx endpoints with valid JWT tokens that lack fresh second-factor authentication, particularly when these operations occur outside normal maintenance windows.","tags":["auth-bypass","api","nginx","jwt"],"model":"garnet-coder","analyzedAt":"2026-10-13T08:52:01.119Z"}}