{
  "affected": [
    {
      "affectedData": [
        {
          "product": "nginx-ui",
          "vendor": "0xJacky",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.3.8"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:nginxui:nginx_ui:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "FB1A4031-FD2F-49D7-8021-128BA057C4FA",
              "versionEndExcluding": "2.3.8",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.8, the GetSettings API handler (api/settings/settings.go:24-65) serializes all settings structs to JSON and returns them to authenticated users. Many sensitive fields are tagged with protected:\"true\" - however, this tag is only enforced during writes (via ProtectedFill in SaveSettings) and is completely ignored during reads. This exposes 40+ protected fields including JwtSecret (enabling auth token forgery), NodeSecret (enabling cluster node impersonation), OIDC ClientSecret (enabling OAuth account takeover), and the IP whitelist configuration. This issue has been patched in version 2.3.8."
    },
    {
      "lang": "es",
      "value": "Nginx UI es una interfaz de usuario web para el servidor web Nginx. Antes de la versi\u00f3n 2.3.8, el gestor de la API GetSettings (api/settings/settings.go:24-65) serializa todas las estructuras de configuraci\u00f3n a JSON y las devuelve a usuarios autenticados. Muchos campos sensibles est\u00e1n etiquetados con protected:\u2019true\u2019 - sin embargo, esta etiqueta solo se aplica durante las escrituras (mediante ProtectedFill en SaveSettings) y se ignora completamente durante las lecturas. Esto expone m\u00e1s de 40 campos protegidos, incluyendo JwtSecret (lo que permite la falsificaci\u00f3n de tokens de autenticaci\u00f3n), NodeSecret (lo que permite la suplantaci\u00f3n de nodos de cl\u00faster), OIDC ClientSecret (lo que permite la toma de control de cuentas OAuth) y la configuraci\u00f3n de la lista blanca de IP. Este problema ha sido parcheado en la versi\u00f3n 2.3.8."
    }
  ],
  "id": "CVE-2026-42223",
  "lastModified": "2026-10-26T19:10:00.163",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-42223",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-05-05T14:08:30.625361Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-05-04T21:16:32.320",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Release Notes"
      ],
      "url": "https://github.com/0xJacky/nginx-ui/releases/tag/v2.3.8"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "url": "https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-q4w7-56hr-83rm"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "url": "https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-q4w7-56hr-83rm"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}