Auth bypass in 0xjacky Nginx-Ui
CVE-2026-107811
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.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- 0xjacky Nginx-Ui — versions >= 2.0.0, < 2.5.0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-107811?
- CVE-2026-107811 is a high-severity vulnerability in 0xjacky Nginx-Ui, classified under Information Disclosure. CVSS score: 8.8/10. Published 2026-10-09.
- How severe is CVE-2026-107811?
- High severity. CVSS v3 base score is 8.8 out of 10.