{
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        "providerMetadata": {
          "dateUpdated": "2026-07-20T20:30:04.101Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/07/20/12"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "packageName": "Net-DNS",
          "product": "Net::DNS",
          "programFiles": [
            "lib/Net/DNS/RR/OPT.pm"
          ],
          "programRoutines": [
            {
              "name": "Net::DNS::RR::OPT::EXTENDED_ERROR::_decompose"
            }
          ],
          "repo": "https://www.net-dns.org/svn/net-dns/",
          "vendor": "NLNETLABS",
          "versions": [
            {
              "lessThanOrEqual": "1.55",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Steffen Ullrich"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Net::DNS versions through 1.55 for Perl allow remote execution injection via EDNS EXTENDED ERROR.\n\nNet::DNS::RR::OPT::EXTENDED_ERROR::_decompose parses the EXTRA-TEXT field of an EDNS EXTENDED-ERROR option (RFC 8914) by tokenising the raw bytes and passing the result to Perl\u0027s eval. There is some escaping done for $ and @, but not for backticks. This can be exploited for command execution if $pkt-\u003eedns-\u003eoption(\u0027EXTENDED-ERROR\u0027) is called in array context, for example with a payload of {0:`\"\u003ccommand\u003e\"`} in EXTRA-TEXT."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-95",
              "description": "CWE-95 Improper Neutralization of Directives in Dynamically Evaluated Code (\u0027Eval Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-20T17:54:42.087Z",
        "orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
        "shortName": "CPANSec"
      },
      "references": [
        {
          "url": "https://www.net-dns.org/blog/#release-candidate-for-netdns-1.56"
        },
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://rt.cpan.org/Ticket/Display.html?id=179945"
        },
        {
          "tags": [
            "release-notes"
          ],
          "url": "https://metacpan.org/release/NLNETLABS/Net-DNS-1.55_01/changes"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to version 1.56 or later."
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "timeline": [
        {
          "lang": "en",
          "time": "2026-07-10T00:00:00.000Z",
          "value": "Issue reported publicly via RT."
        },
        {
          "lang": "en",
          "time": "2026-07-10T00:00:00.000Z",
          "value": "Version 1.55_01 (release candidate for version 1.56) published on CPAN."
        },
        {
          "lang": "en",
          "time": "2026-07-18T00:00:00.000Z",
          "value": "Version 1.56 published on CPAN."
        }
      ],
      "title": "Net::DNS versions through 1.55 for Perl allow remote execution injection via EDNS EXTENDED ERROR",
      "x_generator": {
        "engine": "cpansec-cna-tool 0.1"
      }
    }
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  "cveMetadata": {
    "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
    "assignerShortName": "CPANSec",
    "cveId": "CVE-2026-64193",
    "datePublished": "2026-07-20T17:54:42.087Z",
    "dateReserved": "2026-07-19T10:13:00.756Z",
    "dateUpdated": "2026-07-20T20:30:04.101Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-64193",
      "date": "2026-07-21",
      "epss": "0.00414",
      "percentile": "0.33653"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-64193\",\"sourceIdentifier\":\"9b29abf9-4ab0-4765-b253-1875cd9b441e\",\"published\":\"2026-07-20T19:17:30.047\",\"lastModified\":\"2026-07-20T21:16:50.230\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Net::DNS versions through 1.55 for Perl allow remote execution injection via EDNS EXTENDED ERROR.\\n\\nNet::DNS::RR::OPT::EXTENDED_ERROR::_decompose parses the EXTRA-TEXT field of an EDNS EXTENDED-ERROR option (RFC 8914) by tokenising the raw bytes and passing the result to Perl\u0027s eval. There is some escaping done for $ and @, but not for backticks. This can be exploited for command execution if $pkt-\u003eedns-\u003eoption(\u0027EXTENDED-ERROR\u0027) is called in array context, for example with a payload of {0:`\\\"\u003ccommand\u003e\\\"`} in EXTRA-TEXT.\"}],\"affected\":[{\"source\":\"9b29abf9-4ab0-4765-b253-1875cd9b441e\",\"affectedData\":[{\"vendor\":\"NLNETLABS\",\"product\":\"Net::DNS\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://cpan.org/modules\",\"packageName\":\"Net-DNS\",\"programFiles\":[\"lib/Net/DNS/RR/OPT.pm\"],\"programRoutines\":[{\"name\":\"Net::DNS::RR::OPT::EXTENDED_ERROR::_decompose\"}],\"repo\":\"https://www.net-dns.org/svn/net-dns/\",\"versions\":[{\"version\":\"0\",\"lessThanOrEqual\":\"1.55\",\"versionType\":\"custom\",\"status\":\"affected\"}]}]}],\"metrics\":{},\"weaknesses\":[{\"source\":\"9b29abf9-4ab0-4765-b253-1875cd9b441e\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-95\"}]}],\"references\":[{\"url\":\"https://metacpan.org/release/NLNETLABS/Net-DNS-1.55_01/changes\",\"source\":\"9b29abf9-4ab0-4765-b253-1875cd9b441e\"},{\"url\":\"https://rt.cpan.org/Ticket/Display.html?id=179945\",\"source\":\"9b29abf9-4ab0-4765-b253-1875cd9b441e\"},{\"url\":\"https://www.net-dns.org/blog/#release-candidate-for-netdns-1.56\",\"source\":\"9b29abf9-4ab0-4765-b253-1875cd9b441e\"},{\"url\":\"http://www.openwall.com/lists/oss-security/2026/07/20/12\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
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