What’s Vulnerable › Vulnerabilities

CVE-2026-107811: 0xJacky/nginx-ui /api/nodes Leaks Cluster Node Tokens and Allows Cross-Node Impersonation as initUser

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-10-09 · updated 2026-10-20
• Weakness: CWE-200

Description

Nginx UI is a web user interface for the Nginx web server. From 2.0.0 until 2.5.0, ordinary authenticated users can access /api/nodes and /api/nodes/:id, whose responses serialize the node token field. The same token is accepted as X-Node-Secret by AuthRequired and maps the request to initUser, allowing the user to impersonate a trusted node against a reachable cluster member. This cross-node authentication bypass can expose sensitive management operations, including configuration synchronization and service restart. This issue is fixed in version 2.5.0.

Affected products

• 0xJacky nginx-ui: from 2.0.0 before 2.5.0 — fixed in 2.5.0

How to fix

Upgrade to a fixed version: 0xJacky nginx-ui 2.5.0. Check the vendor advisory for mitigations.

References

• https://github.com/0xJacky/nginx-ui/commit/0ecbd106c37b5143be14880c9447a66135151512
• https://github.com/0xJacky/nginx-ui/releases/tag/v2.5.0
• https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-32gc-wf3m-78w9
• https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-32gc-wf3m-78w9

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