{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "9router",
          "vendor": "decolua",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.5.2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "9Router is an AI router \u0026 token saver. Prior to 0.5.2, 9router validates image URLs by resolving the host before fetching, but open-sse/translator/concerns/image.js performs the later server-side image fetch with a separate DNS resolution. An authenticated attacker with access to the LLM proxy can use a vision-capable model and an attacker-controlled DNS name that first resolves to a public IP and then rebinds to an internal address, allowing server-side requests to internal-only HTTP services. This issue is fixed in version 0.5.2."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-367",
              "description": "CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-918",
              "description": "CWE-918: Server-Side Request Forgery (SSRF)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-10T15:30:49.514Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/decolua/9router/security/advisories/GHSA-cmhj-wh2f-9cgx",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/decolua/9router/security/advisories/GHSA-cmhj-wh2f-9cgx"
        },
        {
          "name": "https://github.com/decolua/9router/commit/c7d07448c58bec1200741de0b73305b860416b82",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/decolua/9router/commit/c7d07448c58bec1200741de0b73305b860416b82"
        },
        {
          "name": "https://github.com/decolua/9router/releases/tag/v0.5.2",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/decolua/9router/releases/tag/v0.5.2"
        }
      ],
      "source": {
        "advisory": "GHSA-cmhj-wh2f-9cgx",
        "discovery": "UNKNOWN"
      },
      "title": "9router: Image prefetch DNS rebinding allows SSRF to internal services"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-56676",
    "datePublished": "2026-07-10T15:30:49.514Z",
    "dateReserved": "2026-06-22T16:39:01.044Z",
    "dateUpdated": "2026-07-10T15:30:49.514Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-56676",
      "date": "2026-07-11",
      "epss": "0.00154",
      "percentile": "0.05019"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-56676\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-07-10T16:16:34.923\",\"lastModified\":\"2026-07-10T17:25:46.957\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"9Router is an AI router \u0026 token saver. Prior to 0.5.2, 9router validates image URLs by resolving the host before fetching, but open-sse/translator/concerns/image.js performs the later server-side image fetch with a separate DNS resolution. An authenticated attacker with access to the LLM proxy can use a vision-capable model and an attacker-controlled DNS name that first resolves to a public IP and then rebinds to an internal address, allowing server-side requests to internal-only HTTP services. This issue is fixed in version 0.5.2.\"}],\"affected\":[{\"source\":\"security-advisories@github.com\",\"affectedData\":[{\"vendor\":\"decolua\",\"product\":\"9router\",\"versions\":[{\"version\":\"\u003c 0.5.2\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L\",\"baseScore\":7.4,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":3.1,\"impactScore\":3.7}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-367\"},{\"lang\":\"en\",\"value\":\"CWE-918\"}]}],\"references\":[{\"url\":\"https://github.com/decolua/9router/commit/c7d07448c58bec1200741de0b73305b860416b82\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/decolua/9router/releases/tag/v0.5.2\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/decolua/9router/security/advisories/GHSA-cmhj-wh2f-9cgx\",\"source\":\"security-advisories@github.com\"}]}}"
  }
}