GHSA-7CQV-QCQ2-R765

Vulnerability from github – Published: 2025-12-08 17:56 – Updated: 2025-12-09 19:18
VLAI?
Summary
1Panel IP Access Control Bypass via Untrusted X-Forwarded-For Headers
Details

Summary

The server trusts all reverse-proxy headers by default, so any remote client can spoof X-Forwarded-For to bypass IP-based protections (AllowIPs, API IP whitelist, “localhost-only” checks). All IP-based access control becomes ineffective.

Details

  • Gin is created with defaults (gin.Default()), which sets TrustedProxies = 0.0.0.0/0 and uses X-Forwarded-For/X-Real-IP to compute ClientIP().

  • IP-based controls rely on ClientIP():

    • AllowIPs / BindDomain (core/middleware/ip_limit.go, core/utils/security/security.go).
    • API IP whitelist (core/middleware/api_auth.go).
    • "localhost-only" checks that depend on ClientIP().

  • Because no trusted-proxy range is enforced, any client can send X-Forwarded-For: 127.0.0.1 (or a whitelisted IP) and be treated as coming from that address.

Impact

All IP-based access control is rendered ineffective: remote clients can masquerade as localhost or any whitelisted IP, defeating AllowIPs, API IP whitelists, and “localhost-only” protections.

Severity ?
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/1Panel-dev/1Panel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.0.14"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/1Panel-dev/1Panel/agent"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.0.0-20251201063338-94f7d78cc976"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-66508"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-290"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-12-08T17:56:57Z",
    "nvd_published_at": "2025-12-09T16:18:19Z",
    "severity": "MODERATE"
  },
  "details": "### Summary\nThe server trusts all reverse-proxy headers by default, so any remote client can spoof `X-Forwarded-For` to bypass IP-based protections (AllowIPs, API IP whitelist, \u201clocalhost-only\u201d checks). All IP-based access control becomes ineffective.\n\n### Details\n- Gin is created with defaults (`gin.Default()`), which sets `TrustedProxies = 0.0.0.0/0` and uses `X-Forwarded-For`/`X-Real-IP` to compute `ClientIP()`.\n\n- IP-based controls rely on `ClientIP()`:\n    - AllowIPs / BindDomain (core/middleware/ip_limit.go, core/utils/security/security.go).\n    - API IP whitelist (core/middleware/api_auth.go).\n    - \"localhost-only\" checks that depend on `ClientIP()`.\n\n- Because no trusted-proxy range is enforced, any client can send `X-Forwarded-For: 127.0.0.1` (or a whitelisted IP) and be treated as coming from that address.\n\n### Impact\nAll IP-based access control is rendered ineffective: remote clients can masquerade as localhost or any whitelisted IP, defeating AllowIPs, API IP whitelists, and \u201clocalhost-only\u201d protections.",
  "id": "GHSA-7cqv-qcq2-r765",
  "modified": "2025-12-09T19:18:58Z",
  "published": "2025-12-08T17:56:57Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/1Panel-dev/1Panel/security/advisories/GHSA-7cqv-qcq2-r765"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-66508"
    },
    {
      "type": "WEB",
      "url": "https://github.com/1Panel-dev/1Panel/commit/94f7d78cc9768ee244da33e09408017d1f68b5ed"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/1Panel-dev/1Panel"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "1Panel IP Access Control Bypass via Untrusted X-Forwarded-For Headers"
}


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