{"api_version":"1","generated_at":"2026-07-21T07:24:37+00:00","cve":"CVE-2026-64193","urls":{"html":"https://cve.report/CVE-2026-64193","api":"https://cve.report/api/cve/CVE-2026-64193.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-64193","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-64193"},"summary":{"title":"Net::DNS versions through 1.55 for Perl allow remote execution injection via EDNS EXTENDED ERROR","description":"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's eval. There is some escaping done for $ and @, but not for backticks. 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There is some escaping done for $ and @, but not for backticks. This can be exploited for command execution if $pkt->edns->option('EXTENDED-ERROR') is called in array context, for example with a payload of {0:`\"<command>\"`} in EXTRA-TEXT."}],"problemTypes":[{"descriptions":[{"cweId":"CWE-95","description":"CWE-95 Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')","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"}}},"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"},"nvd":{"publishedDate":"2026-07-20 19:17:30","lastModifiedDate":"2026-07-20 21:16:50","problem_types":["CWE-95","CWE-95 CWE-95 Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')"],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"64193","Ordinal":"1","Title":"Net::DNS versions through 1.55 for Perl allow remote execution i","CVE":"CVE-2026-64193","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"64193","Ordinal":"1","NoteData":"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's eval. There is some escaping done for $ and @, but not for backticks. This can be exploited for command execution if $pkt->edns->option('EXTENDED-ERROR') is called in array context, for example with a payload of {0:`\"<command>\"`} in EXTRA-TEXT.","Type":"Description","Title":"Net::DNS versions through 1.55 for Perl allow remote execution i"}]}}}