{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.14.5"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "fc447d0658b093edc8cd29a6b171216a44a644c2"
            },
            {
              "fixed": "adba3b3703408ffe80bc03a7be0f6ea9c2372399"
            }
          ],
          "repo": "https://github.com/coredns/coredns",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-9pmm-cxww-rrr7"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-476"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62299.json"
  },
  "details": "CoreDNS is a DNS server written in Go. Prior to 1.14.5, the CoreDNS rewrite plugin supports edns0 rewrite rules with an optional revert flag, and two response rules, edns0SetResponseRule and edns0ReplaceResponseRule[T] in plugin/rewrite/edns0.go, call res.IsEdns0() and immediately dereference the returned *dns.OPT without a nil check when a downstream plugin returns a response with no OPT record. A remote, unauthenticated client can send a single ordinary DNS query matching a rewrite edns0 \u003clocal|nsid|subnet\u003e \u003cset|append|replace\u003e ... revert rule, causing ResponseReverter in plugin/rewrite/reverter.go to panic, return SERVFAIL, and degrade availability, or crash the CoreDNS process if the debug directive disables recovery. This issue is fixed in version 1.14.5.",
  "id": "CVE-2026-62299",
  "modified": "2026-07-19T03:30:57.133628630Z",
  "published": "2026-07-16T19:44:36.475Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/coredns/coredns/releases/tag/v1.14.5"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62299.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/coredns/coredns/security/advisories/GHSA-9pmm-cxww-rrr7"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-62299"
    },
    {
      "type": "FIX",
      "url": "https://github.com/coredns/coredns/commit/fc447d0658b093edc8cd29a6b171216a44a644c2"
    },
    {
      "type": "FIX",
      "url": "https://github.com/coredns/coredns/pull/8190"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "CoreDNS: rewrite-plugin EDNS0 response-revert nil-pointer panic (remote DoS) when a downstream plugin returns a response with no OPT record"
}