{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "2.16.0"
              },
              {
                "last_affected": "2.16.0"
              },
              {
                "introduced": "2.16.1"
              },
              {
                "last_affected": "2.16.1"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "377480b448798488db5ef03f4d5c44d2d930693c"
            },
            {
              "last_affected": "557a2cce357749c6fb3176d42e03ff6f7de4d355"
            }
          ],
          "repo": "https://github.com/chatgptnextweb/nextchat",
          "type": "GIT"
        }
      ],
      "versions": [
        "2.16.0",
        "2.16.1"
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulDB",
    "cwe_ids": [
      "CWE-918"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105238.json"
  },
  "details": "A flaw has been found in ChatGPTNextWeb NextChat up to 2.16.1. This vulnerability affects the function proxyHandler of the file app/api/proxy.ts of the component Proxy Fallback Handler. This manipulation of the argument x-base-url causes server-side request forgery. It is possible to initiate the attack remotely. The exploit has been published and may be used. The pull request to fix this issue awaits acceptance.",
  "id": "CVE-2026-105238",
  "modified": "2026-10-08T02:31:06.859846559Z",
  "published": "2026-10-05T06:15:11.244Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/ChatGPTNextWeb/NextChat/"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105238.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-105238"
    },
    {
      "type": "ADVISORY",
      "url": "https://vuldb.com/cve/CVE-2026-105238"
    },
    {
      "type": "ADVISORY",
      "url": "https://vuldb.com/submit/975707"
    },
    {
      "type": "ADVISORY",
      "url": "https://vuldb.com/vuln/413450"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/ChatGPTNextWeb/NextChat/issues/6813"
    },
    {
      "type": "REPORT",
      "url": "https://vuldb.com/vuln/413450/cti"
    },
    {
      "type": "FIX",
      "url": "https://github.com/ChatGPTNextWeb/NextChat/pull/6884"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P",
      "type": "CVSS_V4"
    }
  ],
  "summary": "ChatGPTNextWeb NextChat Proxy Fallback proxy.ts proxyHandler server-side request forgery"
}