High severity · published Oct 9, 2026
CVE-2026-107813
Nginx UI: Incomplete fix of CVE-2026-84315 - the api/cluster router was not - wrapped in RequireSecureSession, so those sensitive mutations run without OTP step-up
8.8
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 23% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NG
nginx-ui · 0xJacky
>= 2.0.0, < 2.5.0 · source: vendor
NU
Nginx UI · Nginxui
2.0.0 before 2.5.0 · source: NVD
Affected product
NG
nginx-ui
0xJacky
More from nginx-ui
9.9
CVE-2026-44015
Nginx UI: Server-Side Request Forgery (SSRF) via Cluster Proxy Middleware Allows Access to Internal Services
9.9
CVE-2026-33030
Nginx UI: Unencrypted Storage of DNS API Tokens and ACME Private Keys
9.8
CVE-2026-42238
Unauthenticated Remote Code Execution via Backup Restore in nginx-ui
9.8
CVE-2026-42222
nginx-ui: Unauthenticated first-boot instance claim via POST /api/install allows remote bootstrap takeover
9.8
CVE-2026-42221
nginx-ui: Unauthenticated First-Run Installer Allows Remote Initial Admin Claim