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bdu:2026-06992

2026-10-03T16:02:29.547184+00:00

bdu:2026-06992

EUVD-2026-278204

2026-10-03T16:02:29.547234+00:00

EUVD-2026-278204

fkie_cve-2026-33028

2026-10-03T16:02:29.547249+00:00

Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.4, the nginx-ui application is vulnerable to a Race Condition. Due to the complete absence of synchronization mechanisms (Mutex) and non-atomic file writes, concurrent requests lead to the severe corruption of the primary configuration file (app.ini). This vulnerability results in a persistent Denial of Service (DoS) and introduces a non-deterministic path for Remote Code Execution (RCE) through configuration cross-contamination. This issue has been patched in version 2.3.4.

GHSA-m468-xcm6-fxg4 — nginx-ui has Race Condition that Leads to Persistent Data Corruption and Service Collapse

2026-10-03T16:02:29.547280+00:00

Affected: Go: github.com/0xJacky/Nginx-UI, Go: github.com/uozi-tech/cosy

### Summary The `nginx-ui` application is vulnerable to a **Race Condition**. Due to the complete absence of synchronization mechanisms (Mutex) and non-atomic file writes, concurrent requests lead to the severe corruption of the primary configuration file (`app.ini`). This vulnerability results in a persistent Denial of Service (DoS) and introduces a non-deterministic path for **Remote Code Execution (RCE)** through configuration cross-contamination.

### Details The vulnerability exists because the settings update pipeline does not implement any synchronization primitives. When multiple requests reach the handler simultaneously: 1. **Memory Corruption**: `ProtectedFill()` modifies shared global singleton pointers without thread-safety, leading to inconsistent states in memory. 2. **File Corruption**: The underlying library (`gopkg.in/ini.v1`) performs direct overwrites. Concurrent write operations interleave at the OS level, resulting in `app.ini` files with empty leading lines, truncated fields, or partially overwritten configuration keys. 3. **State Persistent Failure**: Depending on which bytes are corrupted, the application either fails its "is-installed" check (redirecting to `/install`) or encounters a fatal error during boot/runtime that prevents the process from responding to any further requests.

**Environment:** - **OS**: Kali Linux 6.17.10-1kali1 (6.17.10+kali-amd64) - **Application Version**: nginx-ui v2.3.3 (513) e5da6dd (go1.26.0) - **Deployment**: Docker…

WID-SEC-W-2026-0931 — nginx-ui: Mehrere Schwachstellen

2026-10-03T16:02:29.547337+00:00

Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in nginx-ui ausnutzen, um sich Administratorrechte zu verschaffen, beliebigen Code auszuführen, Daten zu manipulieren, Sicherheitsmaßnahmen zu umgehen oder einen Denial-of-Service-Zustand herbeizuführen.