nginx-ui: Mehrere Schwachstellen
WID-SEC-2026-0931 · first 31.03.2026 · updated 16.04.2026 · CVSS 9,8
What it is about
NGINX ist eine Webserver-, Reverse Proxy- und E-Mail-Proxy Software. Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in nginx-ui ausnutzen, um sich Administratorrechte zu verschaffen, beliebigen Code auszuführen, Daten zu manipulieren, Sicherheitsmaßnahmen zu umgehen oder einen Denial-of-Service-Zustand herbeizuführen.
Under what conditions?
Over the network, but only with valid access (login required), for example with stolen credentials or as an insider.
What can happen in the worst case
An attacker could use the vulnerability to
- sich Administratorrechte zu verschaffen
- beliebigen Code auszuführen
- Daten zu manipulieren
- Sicherheitsmaßnahmen zu umgehen oder einen Denial-of-Service-Zustand herbeizuführen
Am I affected?
Affected according to the BSI:
- NGINX NGINX UI <2.3.4
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- NGINX NGINX UI 2.3.4
Is the vulnerability already being exploited?
None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.
Information and sources
- Original BSI advisory (WID)
- NGINX-UI Release Notes vom 2026-03-30 github.com
- EU Vulnerability Database vom 2026-03-30 euvd.enisa.europa.eu
- EU Vulnerability Database vom 2026-03-30 euvd.enisa.europa.eu
- EU Vulnerability Database vom 2026-03-30 euvd.enisa.europa.eu
- EU Vulnerability Database vom 2026-03-30 euvd.enisa.europa.eu
- EU Vulnerability Database vom 2026-03-30 euvd.enisa.europa.eu
- EU Vulnerability Database vom 2026-03-30 euvd.enisa.europa.eu
- GitHub Security Advisory GHSA-5hf2-vhj6-gj9m vom 2026-03-30 github.com
- GitHub Security Advisory GHSA-cp8r-8jvw-v3qg vom 2026-03-30 github.com
- GitHub Security Advisory GHSA-fhh2-gg7w-gwpq vom 2026-03-30 github.com
- GitHub Security Advisory GHSA-h6c2-x2m2-mwhf vom 2026-03-30 github.com
- GitHub Security Advisory GHSA-m468-xcm6-fxg4 vom 2026-03-30 github.com
- GitHub Security Advisory GHSA-m8p8-53vf-8357 vom 2026-03-30 github.com
- Exploit CVE-2026-33032 vom 2026-04-15 pluto.security
CVE: CVE-2026-33026, CVE-2026-33027, CVE-2026-33028, CVE-2026-33029, CVE-2026-33030, CVE-2026-33032
Source: BSI warning and information service (CERT-Bund); CISA. The assessment of the conditions is my reading of the BSI text; the external pages are in their original language.