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OpenAdvisories
Medium · 6.5 CVE-2026-42220 EUVD-2026-27133GHSA-7jrr-xw9c-mj39GO-2026-5227

nginx-ui: Authenticated settings disclosure exposes node.secret and enables trusted-node authentication abuse, backup exfiltration, and restore-based nginx-ui state rollback

Published May 4, 2026 · Updated May 6, 2026 · Assigned by GitHub_M

Description

Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.8, an authenticated user can call GET /api/settings and retrieve sensitive configuration values, including node.secret. The same node.secret is accepted by AuthRequired() through the X-Node-Secret header (or node_secret query parameter), causing the request to be treated as authenticated via the trusted-node path and associated with the init user. This issue has been patched in version 2.3.8.

Affected products

VendorProductAffectedFixed
0xJacky nginx-ui < 2.3.8 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
openSUSE Leap 16.0 govulncheck-vulndb 0.0.20260723T184607-160000.1.1 openSUSE-SU-2026:21483-1

Affected packages

EcosystemPackageAffectedFixedRecord
Go github.com/0xJacky/Nginx-UI <= 1.9.9 — GHSA-7jrr-xw9c-mj39
Go github.com/0xJacky/Nginx-UI all versions — GO-2026-5227

Advisories 2

References