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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.

PUBLISHED Reserved 2026-03-17 | Published 2026-03-30 | Updated 2026-03-30 | Assigner GitHub_M




MEDIUM: 6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CWE-73: External Control of File Name or Path

Product status

< 2.3.4
affected

References

github.com/...inx-ui/security/advisories/GHSA-m8p8-53vf-8357 exploit

github.com/...inx-ui/security/advisories/GHSA-m8p8-53vf-8357

github.com/0xJacky/nginx-ui/releases/tag/v2.3.4

cve.org (CVE-2026-33027)

nvd.nist.gov (CVE-2026-33027)

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