Critical 9.4Published Mar 30, 2026

CVE-2026-33026nginx-ui Backup Restore Allows Tampering with Encrypted Backups

Updated under an hour ago (Oct 27, 2026, 10:20 AM ET)

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It affects 0xJacky nginx-ui and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for 0xJacky nginx-ui

Exploited in the last 30 days

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.

CVSS: 9.4 CRITICAL (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Weakness (CWE): CWE-312, CWE-347, CWE-354
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Mar 31, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

0xJacky nginx-ui 0xjacky:nginx_ui (from the name)	before 2.3.4	CNA record
nginxui nginx_ui nginxui:nginx_ui	before 2.3.4	NVD

References

References

https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-fhh2-gg7w-gwpq	x-refsource-confirm, exploit, mitigation, vendor-advisory
https://github.com/0xJacky/nginx-ui/releases/tag/v2.3.4	x-refsource-misc, product, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.