{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "0"
                  },
                  {
                    "fixed": "0.9.4"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StringRangeExpression"
              },
              {
                "range": [
                  {
                    "fixed": "58e2f26bb7259d24c963a753962ac34f56c63b01"
                  }
                ],
                "source": "REFERENCES_COMMIT"
              },
              {
                "original_tag": "v0.9.4",
                "range": [
                  {
                    "fixed": "63cc5c1a886fc6408ac56979f136177cea060b48"
                  }
                ],
                "source": "REFERENCES_TAG"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "63cc5c1a886fc6408ac56979f136177cea060b48"
            },
            {
              "fixed": "58e2f26bb7259d24c963a753962ac34f56c63b01"
            }
          ],
          "repo": "https://github.com/3xpyth0n/ideon",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-cvcr-fcf6-366r"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-918"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/65xxx/CVE-2026-65968.json"
  },
  "details": "ideon is a self-hosted visual workspace. Prior to version 0.9.4, validateUrlForSSRF() / safeFetch() in lib/oauth/ssrf-protection.ts (and the parallel validateMcpUrl() in lib/security/validators.ts) perform SSRF host-blocking by string/regex matching on new URL(url).hostname. Their IPv6 branch only recognises the textual forms ::1, fe80:/fc00:/fd00: prefixes, and the dotted-decimal IPv4-mapped form ::ffff:127.x. It does not recognise the WHATWG-canonical IPv4-mapped-IPv6 host that Node emits for a mapped address, which is hex-compressed and bracket-wrapped: [::ffff:7f00:1] for 127.0.0.1, [::ffff:a9fe:a9fe] for 169.254.169.254. An authenticated user who registers a STREAMABLE_HTTP / SSE MCP server with URL http://[::ffff:7f00:1]:PORT/ (loopback) or http://[::ffff:a9fe:a9fe]/ (cloud metadata) passes both guards, and the server-side OAuth-discovery action then fetches that host, yielding server-side request forgery to loopback and to the cloud metadata service. This issue has been patched in version 0.9.4.",
  "id": "CVE-2026-65968",
  "modified": "2026-11-14T02:30:30.996098919Z",
  "published": "2026-11-11T20:57:39.798Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/3xpyth0n/ideon/releases/tag/v0.9.4"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/3xpyth0n/ideon/security/advisories/GHSA-cvcr-fcf6-366r"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/65xxx/CVE-2026-65968.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-65968"
    },
    {
      "type": "FIX",
      "url": "https://github.com/3xpyth0n/ideon/commit/58e2f26bb7259d24c963a753962ac34f56c63b01"
    }
  ],
  "schema_version": "1.9.2",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "ideon: Unauthenticated SSRF in /api/proxy/image via WHATWG bracketed/hex-mapped IPv6 bypass of isSafeUrl guard"
}