CVE-2026-105238

{
  "etk_id": "ETK-2026-647",
  "cve_id": "CVE-2026-105238",
  "display_id": "CVE-2026-105238",
  "ghsa_id": "GHSA-rhg8-4whm-xj7w",
  "euvd_id": "EUVD-2026-92263",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Server-side request forgery in NextChat proxy fallback handler",
  "summary": "NextChat through version 2.16.1 is affected by a server-side request forgery issue in its proxy fallback handler. A remote attacker may cause the application server to issue requests to attacker-influenced destinations when the affected proxy functionality is reachable.",
  "mitigation": "Restrict access to the proxy fallback endpoint and limit the application's outbound network access to approved destinations. Apply an upstream patched release once one is published; the evidence does not identify a fixed version.",
  "vendor": "ChatGPTNextWeb",
  "product": "NextChat",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "2.16.0",
        "2.16.1"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "NextChat",
      "purl": null
    }
  ],
  "cwes": null,
  "cvss_score": 7.3,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
  "epss_score": 0.0039,
  "epss_percentile": 0.3186,
  "epss_asof": "2026-10-20",
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 15.440162383333334,
  "t0_at": "2026-10-05T06:15:11.244000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-05T12:29:56.983982+00:00",
      "days": 0.260251620162037,
      "is_lower_bound": false,
      "measured_at": "2026-10-05T06:15:11.244000+00:00",
      "url": null
    },
    "public_poc": {
      "at": "2026-10-05T06:15:11.244000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-05T06:15:11.244000+00:00",
      "url": "https://github.com/ChatGPTNextWeb/NextChat/issues/6813"
    },
    "trigger_signal": {
      "at": "2026-10-05T06:15:11.244000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-05T06:15:11.244000+00:00",
      "url": "https://github.com/advisories/GHSA-rhg8-4whm-xj7w"
    }
  }
}