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CVE-2026-33029

Nginx UI: DoS via Negative Integer Input in Logrotate Interval

Published: Mar 30, 2026Updated: Apr 2, 2026 Sources: CVE List NVD BDUCWE-20
NVD MITRE
6.5CVSSMEDIUM
EPSS Score
0.9%
Top 43.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.4, an input validation vulnerability in the logrotate configuration allows an authenticated user to cause a complete Denial of Service (DoS). By submitting a negative integer for the rotation interval, the backend enters an infinite loop or an invalid state, rendering the web interface unresponsive. This issue has been patched in version 2.3.4.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-20NVD-CWE-noinfo

Affected Products

nginx-ui0xJacky
Mixed
Cloud & SaaS / saas-application
nginx uinginxui
On-prem
Networking Infrastructure / network-management
Nginx UIСообщество свободного программного обеспечения
On-prem
Web & CMS Plugins
0xjackyindividual-devCloud & SaaSaka nginx-ui
nginxuicommercialNetworking Infrastructureaka nginx ui, nginxui
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-cp8r-8jvw-v3qg
github.com
https://github.com/0xJacky/nginx-ui/releases/tag/v2.3.4
github.com

Timeline

Published
Mar 30, 2026
Last Updated
Apr 2, 2026

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