Medium
nginx-ui: Authenticated settings disclosure exposes node.secret and enables trusted-node authentication abuse, backup exfiltration, and restore-based nginx-ui state rollback
Type: advisorySources: OSV
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-42220
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 15:49 UTC · Revision 1
Source evidence
nginx-ui: Authenticated settings disclosure exposes node.secret and enables trusted-node authentication abuse, backup exfiltration, and restore-based nginx-ui state rollback
core-osv · Original sourcePublished 4 May 2026, 20:08 UTC
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.
osv:CVE-2026-42220
Complete source record
{
"id": "22df1d639327950770c520ab1c4ef70b533d22ef92a1567ed84c67c069317bb1",
"url": "https://osv.dev/vulnerability/CVE-2026-42220",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "nginx-ui: Authenticated settings disclosure exposes node.secret and enables trusted-node authentication abuse, backup exfiltration, and restore-based nginx-ui state rollback",
"summary": "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.",
"evidence": "osv:CVE-2026-42220",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2026-42220",
"aliases": [
"CVE-2026-42220",
"GHSA-7jrr-xw9c-mj39",
"GO-2026-5227"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/0xjacky/nginx-ui",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "7864e378f5cf8013c4df38c15e57480f5c2db1d7"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "0"
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{
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],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
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],
"source": "REFERENCES_TAG",
"original_tag": "v2.3.8"
},
{
"cpe": "cpe:2.3:a:nginxui:nginx_ui:*:*:*:*:*:*:*:*",
"range": [
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{
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"source": "CPE_RANGE"
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"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42220.json"
}
}
],
"modified": "2026-10-28T02:30:36.894252121Z",
"provider": "osv",
"references": [
"https://github.com/0xJacky/nginx-ui/releases/tag/v2.3.8",
"https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-7jrr-xw9c-mj39",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42220.json",
"https://nvd.nist.gov/vuln/detail/CVE-2026-42220"
],
"provider_metadata": {
"cwe_ids": [
"CWE-200",
"CWE-863"
],
"cna_assigner": "GitHub_M",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42220.json"
}
},
"related_cves": [
{
"value": "CVE-2026-42220",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 504267,
"published_at": "2026-05-04T20:08:07.225+00:00"
}