{ "document": { "aggregate_severity": { "text": "medium" }, "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "description", "text": "Net::Whois::Raw versions before 2.99044 for Perl ship a pwhois command-line tool that queries WHOIS for the wrong domain for unicode domain names.\n\npwhois encodes each non-ASCII label directly using Net::IDN::Punycode and prepends xn--. Apart from lowercasing ASCII and Cyrillic letters, it skips the IDNA mapping and normalization steps, so a label with other uppercase letters, or not in NFC, encodes to a different A-label than its IDNA form. For example, a label of U+00C9 followed by \"cole\" encodes to \"xn--cole-pka\" rather than \"xn--cole-9oa\".\n\nThe Net::Whois::Raw library modules are not affected.", "title": "Vulnerability Description" } ], "publisher": { "category": "other", "contact_details": "gdt@cpan.org", "name": "giterlizzi", "namespace": "https://github.com/giterlizzi/" }, "references": [ { "category": "self", "summary": "CPANSA-Net-Whois-Raw-2026-19954 JSON", "url": "https://raw.githubusercontent.com/giterlizzi/perl-CPANSA-CSAF/develop/csaf/white/2026/cpansa-net-whois-raw-2026-19954.json" }, { "category": "external", "summary": "https://github.com/regru/Net-Whois-Raw/issues/34", "url": "https://github.com/regru/Net-Whois-Raw/issues/34" }, { "category": "external", "summary": "https://github.com/regru/Net-Whois-Raw/pull/35", "url": "https://github.com/regru/Net-Whois-Raw/pull/35" }, { "category": "external", "summary": "https://metacpan.org/release/NALOBIN/Net-Whois-Raw-2.99044/changes", "url": "https://metacpan.org/release/NALOBIN/Net-Whois-Raw-2.99044/changes" }, { "category": "external", "summary": "https://metacpan.org/release/PJCJ/Net-IDN-Encode-2.590-TRIAL/view/lib/Net/IDN/Punycode.pm#WARNING", "url": "https://metacpan.org/release/PJCJ/Net-IDN-Encode-2.590-TRIAL/view/lib/Net/IDN/Punycode.pm#WARNING" }, { "category": "external", "summary": "https://security.metacpan.org/patches/N/Net-Whois-Raw/2.99043/CVE-2026-19954-r1.patch", "url": "https://security.metacpan.org/patches/N/Net-Whois-Raw/2.99043/CVE-2026-19954-r1.patch" }, { "category": "external", "summary": "https://www.rfc-editor.org/rfc/rfc5891#section-5.2", "url": "https://www.rfc-editor.org/rfc/rfc5891#section-5.2" }, { "category": "external", "summary": "http://www.openwall.com/lists/oss-security/2026/10/05/9", "url": "http://www.openwall.com/lists/oss-security/2026/10/05/9" }, { "category": "external", "summary": "CVE-2026-19954 (NVD)", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-19954" } ], "title": "Net-Whois-Raw vulnerability", "tracking": { "current_release_date": "2026-10-05T00:00:00", "generator": { "engine": { "name": "CSAF Perl Toolkit", "version": "0.26" } }, "id": "CPANSA-Net-Whois-Raw-2026-19954", "initial_release_date": "2026-10-05T00:00:00", "revision_history": [ { "date": "2026-10-05T00:00:00", "number": "1", "summary": "First release" } ], "status": "final", "version": "1" } }, "product_tree": { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:cpan/<2.99044", "product": { "name": "Net-Whois-Raw less than 2.99044", "product_id": "CSAFPID-0001", "product_identification_helper": { "purl": "pkg:cpan/Net-Whois-Raw" } } }, { "category": "product_version_range", "name": "vers:cpan/>=2.99044", "product": { "name": "Net-Whois-Raw greater than or equal 2.99044", "product_id": "CSAFPID-0002", "product_identification_helper": { "purl": "pkg:cpan/Net-Whois-Raw" } } } ], "category": "product_name", "name": "Net-Whois-Raw" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-19954", "cwe": { "id": "CWE-176", "name": "Improper Handling of Unicode Encoding" }, "notes": [ { "category": "description", "text": "Net::Whois::Raw versions before 2.99044 for Perl ship a pwhois command-line tool that queries WHOIS for the wrong domain for unicode domain names.\n\npwhois encodes each non-ASCII label directly using Net::IDN::Punycode and prepends xn--. Apart from lowercasing ASCII and Cyrillic letters, it skips the IDNA mapping and normalization steps, so a label with other uppercase letters, or not in NFC, encodes to a different A-label than its IDNA form. For example, a label of U+00C9 followed by \"cole\" encodes to \"xn--cole-pka\" rather than \"xn--cole-9oa\".\n\nThe Net::Whois::Raw library modules are not affected.", "title": "Vulnerability Description" } ], "product_status": { "fixed": [ "CSAFPID-0002" ], "known_affected": [ "CSAFPID-0001" ] }, "scores": [ { "cvss_v3": { "baseScore": 5.4, "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N", "version": "3.1" }, "products": [ "CSAFPID-0001" ] } ] } ] }