Is CVE-2026-33027 actively exploited?

No active exploitation of CVE-2026-33027 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-33027 be exploited remotely?

Yes. CVE-2026-33027 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-33027?

CVE-2026-33027 has a CVSS score of 6.5 (MEDIUM).

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MEDIUM

CVE-2026-33027

CWE-22Published: March 30, 2026· Updated: Apr 1, 2026

6.5

CVSS v3.1

EPSS:0.05%probability of exploitation in 30 daysPercentile:16.7th

Official 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.

NVD Source

Technical Analysis

CVE-2026-33027 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 6.5.