Vulnerability · Published Oct 9, 2026 · Assigned by GitHub_M

CVE-2026-1078110xJacky/nginx-ui /api/nodes Leaks Cluster Node Tokens and Allows Cross-Node Impersonation as initUser

High 8.8

In plain English

A high-severity information exposure in nginx-ui from 0xJacky. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 38% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)0.4%top 62.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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 packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Go	github.com/0xJacky/Nginx-UI	1.9.10-0.20260728091109-0ecbd106c37b	GHSA-32gc-wf3m-78w9
Go	github.com/0xJacky/Nginx-UI	1.9.10-0.20260728091109-0ecbd106c37b	GO-2026-6702

Affected products (as reported)

Vendor	Product	Versions
0xJacky	nginx-ui	>= 2.0.0, < 2.5.0

Weakness: CWE-200, CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

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