Nginx UI: Authenticated Remote Code Execution via Backup Restore App Config Overwrite

{
  "id": "8508b7864e4043299d069c2268bec6dcf2721761290542edc86197db78b835ba",
  "url": "https://osv.dev/vulnerability/CVE-2026-107806",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Nginx UI: Authenticated Remote Code Execution via Backup Restore App Config Overwrite",
    "summary": "Nginx UI is a web user interface for the Nginx web server. From 2.3.8 until 2.5.0, an authenticated administrator with an active secure session can submit attacker-controlled portable backup key material and a matching manifest to POST /api/restore. The restore flow trusts the supplied key, decrypts attacker-controlled contents, and replaces the live app.ini, including protected nginx command settings such as TestConfigCmd. Triggering POST /api/nginx/test then executes the restored command in the Nginx UI runtime context, affecting confidentiality, integrity, and availability. This issue is fixed in version 2.5.0.",
    "evidence": "osv:CVE-2026-107806",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2026-107806",
      "aliases": [
        "CVE-2026-107806",
        "GHSA-p393-cf76-4jmr",
        "GO-2026-6741"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/0xjacky/nginx-ui",
              "type": "GIT",
              "events": [
                {
                  "introduced": "7864e378f5cf8013c4df38c15e57480f5c2db1d7"
                },
                {
                  "fixed": "acb59fdd81dbdd60abd0004e9ade573186a3be43"
                },
                {
                  "fixed": "a467ed652591fc0cd1b466a1ec751b493faef9f7"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:nginxui:nginx_ui:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.3.8"
                      },
                      {
                        "fixed": "2.5.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "a467ed652591fc0cd1b466a1ec751b493faef9f7"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "acb59fdd81dbdd60abd0004e9ade573186a3be43"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v2.5.0"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.4.3",
            "v2.4.2",
            "v2.4.1",
            "v2.4.0",
            "v2.3.11",
            "v2.3.10",
            "v2.3.9",
            "v2.3.8"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-107806.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:30.974677981Z",
      "provider": "osv",
      "references": [
        "https://github.com/0xJacky/nginx-ui/releases/tag/v2.5.0",
        "https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-p393-cf76-4jmr",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107806.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-107806",
        "https://github.com/0xJacky/nginx-ui/commit/a467ed652591fc0cd1b466a1ec751b493faef9f7"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-94"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107806.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-107806",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 498167,
  "published_at": "2026-10-09T15:00:55.47+00:00"
}