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CVE-2026-33027

Nginx UI: Improper Path Validation Allows Recursive Deletion of the Nginx Configuration Directory

Published: Mar 30, 2026Updated: Apr 1, 2026 Sources: CVE List NVD BDUCWE-22
NVD MITRE
6.5CVSSMEDIUM
EPSS Score
0.4%
Top 68.6%
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, the nginx-ui configuration improperly handles URL-encoded traversal sequences. When specially crafted paths are supplied, the backend resolves them to the base Nginx configuration directory and executes the operation on the base directory (/etc/nginx). In particular, this allows an authenticated user to remove the entire /etc/nginx directory, resulting in a partial Denial of Service. 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-22CWE-73

Affected Products

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

2 techniques
Collection
Discovery
View detailed technique mapping

References

https://github.com/0xJacky/nginx-ui/releases/tag/v2.3.4
github.com
https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-m8p8-53vf-8357
github.com

Timeline

Published
Mar 30, 2026
Last Updated
Apr 1, 2026

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