CVE-2026-42220 | THREATINT

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.

PUBLISHED Reserved 2026-04-25 | Published 2026-05-04 | Updated 2026-05-06 | Assigner GitHub_M

MEDIUM: 6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Problem types

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

CWE-863: Incorrect Authorization

Product status

< 2.3.8

affected

References

github.com/...inx-ui/security/advisories/GHSA-7jrr-xw9c-mj39 exploit

github.com/...inx-ui/security/advisories/GHSA-7jrr-xw9c-mj39

github.com/0xJacky/nginx-ui/releases/tag/v2.3.8

cve.org (CVE-2026-42220)

nvd.nist.gov (CVE-2026-42220)

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