CVE-2026-33026

CRITICAL

nginx-ui Backup Restore Allows Tampering with Encrypted Backups

Title source: cna
STIX 2.1

Description

Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.4, the nginx-ui backup restore mechanism allows attackers to tamper with encrypted backup archives and inject malicious configuration during restoration. This issue has been patched in version 2.3.4.

References (2)

Scores

CVSS v3 9.1
EPSS 0.0001
EPSS Percentile 2.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact total

Details

CWE
CWE-312 CWE-347 CWE-354
Status published
Products (3)
0xJacky/Nginx-UI 0Go
0xJacky/nginx-ui < 2.3.4
nginxui/nginx_ui < 2.3.4
Published Mar 30, 2026
Tracked Since Mar 31, 2026