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CVE-2026-33028

⚠️ high
🔍 Scan for this CVE
Summary

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-c

Description

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.

CVSS Score
7.5
High
EPSS Score
0.1
Exploit Probability
Published Date
2026-03-30
First Seen: 2026-03-31
📊 Relative Risk Intelligence

This CVE is Moderate Risk - more severe than 69.0% of all 326,604 vulnerabilities in our database.

#101,315
Above average severity
Severity Percentile
🎯 CISA SSVC Assessment Updated: Mar 30, 2026
🔍 Exploitation Status
Poc
Proof-of-concept available
⚙️ Automatable
NO
Requires human interaction
💥 Technical Impact
Partial
Limited system impact
SSVC data provided by CISA
Last Modified 2026-04-01
Source NVD 🔗
CVSS Vector 3.1 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS Vector 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE IDs (Weakness Types)
CWE-362

📦 Affected Products 1

Vendor Product Status Affected Versions
nginxui nginx_ui Affected
< 2.3.4

🔗 References 2

https://github.com/0xJacky/nginx-ui/releases/tag/v2.3.4
Product Release Notes
https://github.com/0xJacky/nginx-ui/security/advisor...
Exploit Mitigation Vendor Advisory

🔗 Related CVEs 6

CVE ID Severity CVSS EPSS Summary Published
CVE-2026-44015 ⚠️ high 8.5 0.0 Nginx UI is a web user interface for the Nginx web server. In 2.3.4 and earlier, an authenticated user can perform Serve... 2026-05-12
CVE-2026-33027 🔶 medium 6.5 0.1 Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.4, the nginx-ui configuration improperly... 2026-03-30
CVE-2026-33029 🔶 medium 6.5 0.1 Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.4, an input validation vulnerability in ... 2026-03-30
CVE-2026-33030 ⚠️ high 8.8 0.0 Nginx UI is a web user interface for the Nginx web server. In versions 2.3.3 and prior, Nginx-UI contains an Insecure Di... 2026-03-30
CVE-2026-33026 ⛔ critical 9.1 0.0 Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.4, the nginx-ui backup restore mechanism... 2026-03-30
CVE-2026-27944 ⛔ critical 9.8 1.0 Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.3, the /api/backup endpoint is accessibl... 2026-03-05
These CVEs affect the same products