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

Quick assessment

Affected
0xJacky nginx-ui
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Nginx UI 是 Nginx 网络服务器的一个 Web 用户界面。在版本 2.0.0 到 2.5.0 之间，普通认证用户可以访问 和 ，其响应中包含对节点令牌（node token）字段的序列化数据。该令牌同样被 模块作为 头字段接受，并将请求映射到 方法，从而允许用户冒充受信任的节点，针对集群中可访问的成员发起请求。这种跨节点的身份验证绕过可能导致敏感管理操作（例如配置同步和服务重启）暴露。该问题已在版本 2.5.0 中得到修复。

CVSS 8.8 · High

Affected Version Matrix 1

VendorProduct Version RangeStatus
0xJacky nginx-ui >= 2.0.0, < 2.5.0 affected
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I. Basic Information for CVE-2026-107811

Vulnerability Information
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Vulnerability Title
0xJacky/nginx-ui /api/nodes Leaks Cluster Node Tokens and Allows Cross-Node Impersonation as initUser
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5

Affected Products

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

II. Public POCs for CVE-2026-107811

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III. Intelligence Information for CVE-2026-107811

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Vendor Advisories for CVE-2026-107811 (1)

Vendor Pages for CVE-2026-107811 (1)

Same Patch Batch · 0xJacky · 2026-10-09 · 10 CVEs total

CVE-2026-107806 9.4 CRITICAL Nginx UI: Authenticated Remote Code Execution via Backup Restore App Config Overwrite
CVE-2026-107807 8.8 HIGH Nginx UI: Node Secret Credential Exposure via URL Query Parameter
CVE-2026-107809 8.8 HIGH Nginx-UI AuthRequired token cookie fallback enables CSRF against management APIs
CVE-2026-107813 8.8 HIGH Nginx UI: Incomplete fix of CVE-2026-84315 - the api/cluster router was not - wrapped in
CVE-2026-107808 8.1 HIGH Nginx UI: Authentication bypass: password login does not enforce a passkey-only second fac
CVE-2026-107810 8.1 HIGH Nginx UI: Backup restore follows crafted symlinks into the live Nginx configuration path b
CVE-2026-107805 7.5 HIGH Nginx UI: Unauthenticated signed-request body staging can exhaust temporary storage
CVE-2026-107812 7.5 HIGH Nginx UI: Self-upgrade runs an unsigned binary verified only by a same-origin digest → RCE
CVE-2026-107804 5.3 MEDIUM Nginx UI: Bundled reverse proxy can bypass IP allowlists and enable shared login lockout

IV. Related Vulnerabilities

Same product: nginx-ui
Same vendor: 0xJacky
Same weakness: CWE-200

V. Comments for CVE-2026-107811

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