{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "8.31.0"
                  },
                  {
                    "fixed": "8.38.0"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              },
              {
                "range": [
                  {
                    "fixed": "8e850b1c932452627fba397f2005dd6fd57b9617"
                  }
                ],
                "source": "REFERENCES_COMMIT"
              },
              {
                "original_tag": "v8.38.0",
                "range": [
                  {
                    "fixed": "e4ee0f29d648f8d5a0a766dd797d108361905deb"
                  }
                ],
                "source": "REFERENCES_TAG"
              }
            ]
          },
          "events": [
            {
              "introduced": "db51f9026d13357aecc23e3c99ba6937ac09fbfc"
            },
            {
              "fixed": "e4ee0f29d648f8d5a0a766dd797d108361905deb"
            },
            {
              "fixed": "8e850b1c932452627fba397f2005dd6fd57b9617"
            }
          ],
          "repo": "https://github.com/gotenberg/gotenberg",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-fqg9-x2xw-5crx"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-918"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/126xxx/CVE-2026-126799.json"
  },
  "details": "Gotenberg 8.31.0 before 8.38.0 contains a server-side request forgery vulnerability in IsPublicIP() that allows unauthenticated attackers to bypass private-IP deny-list protections using IPv6 zone identifiers. Attackers can append a zone such as %25eth0 to the unspecified address or blocked IPv6 prefixes in downloadFrom, webhook, or Chromium/LibreOffice URLs to reach internal services and read responses in the returned PDF.",
  "id": "CVE-2026-126799",
  "modified": "2026-11-14T02:30:26.446451153Z",
  "published": "2026-11-11T20:53:03.948Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/126xxx/CVE-2026-126799.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/gotenberg/gotenberg/releases/tag/v8.38.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/gotenberg/gotenberg/security/advisories/GHSA-fqg9-x2xw-5crx"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-126799"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/gotenberg-8.31.0-before-8.38.0-ssrf-via-ipv6-zone-identifiers-in-ispublicip"
    },
    {
      "type": "FIX",
      "url": "https://github.com/gotenberg/gotenberg/commit/8e850b1c932452627fba397f2005dd6fd57b9617"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/gotenberg/gotenberg/blob/v8.37.0/pkg/gotenberg/outbound.go#L112-L142"
    }
  ],
  "schema_version": "1.9.2",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:L/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Gotenberg 8.31.0 before 8.38.0 SSRF via IPv6 Zone Identifiers in IsPublicIP"
}