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              "content": {
                "id": "CVE-2026-72761",
                "options": [
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                    "Exploitation": "none"
                  },
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                    "Automatable": "yes"
                  },
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                    "Technical Impact": "partial"
                  }
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                "timestamp": "2026-08-10T17:00:38.181767Z",
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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          "defaultStatus": "unaffected",
          "product": "vulnerability-lookup",
          "repo": "https://github.com/vulnerability-lookup/vulnerability-lookup",
          "vendor": "vulnerability-lookup",
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              "lessThanOrEqual": "5.5.0",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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          "lang": "en",
          "type": "finder",
          "value": "tonghuaroot"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Cedric Bonhomme"
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              "value": "The webhook URL validator in `website/notifications/webhooks.py` uses\u003cbr\u003e`ip.is_global` to reject non-public addresses after DNS resolution. IPv6\u003cbr\u003etransition addresses (NAT64 `64:ff9b::/96`, 6to4 `2002::/16`, Teredo\u003cbr\u003e`2001:0000::/32`) are classified as globally routable by IANA, so `is_global`\u003cbr\u003ereturns `True` even when the embedded IPv4 targets a private, loopback, or\u003cbr\u003ecloud metadata destination. An attacker can register a webhook pointing at a\u003cbr\u003ehostname that resolves to a transition address to bypass the SSRF guard and\u003cbr\u003eexfiltrate vulnerability data to an internal endpoint.\u003cbr\u003e\u003cbr\u003e\u003cdiv\u003eThe vulnerability was introduced on a non-release version. The fix was already done on HEAD. It only affects\u003c/div\u003e\u003cdiv\u003eorganisation running the HEAD.\u003c/div\u003e\u003cbr\u003e"
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          "capecId": "CAPEC-664",
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              "lang": "en",
              "value": "CAPEC-664 Server Side Request Forgery"
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            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
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            "baseScore": 6.9,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "LOW",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
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              "lang": "en",
              "value": "GENERAL"
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          ]
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      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-918",
              "description": "CWE-918 Server-Side Request Forgery (SSRF)",
              "lang": "en",
              "type": "CWE"
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        }
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      "providerMetadata": {
        "dateUpdated": "2026-08-10T14:33:13.106Z",
        "orgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8",
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          "tags": [
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          "url": "https://github.com/vulnerability-lookup/vulnerability-lookup/commit/f3e0c6899c5b3823dcfd860fc6cb3edbedc9bf65"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Webhook SSRF guard bypassed by IPv6 transition addresses (NAT64/6to4/Teredo pass is_global check) in vulnerability-lookup",
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    "assignerShortName": "CIRCL",
    "cveId": "CVE-2026-72761",
    "datePublished": "2026-08-10T14:33:13.106Z",
    "dateReserved": "2026-08-10T14:32:19.844Z",
    "dateUpdated": "2026-08-10T17:00:48.661Z",
    "state": "PUBLISHED"
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