{"id":"CVE-2026-19954","revision":"07cfe872cf8a4d1da518d04becf5243b","records":[{"revision":"07cfe872cf8a4d1da518d04becf5243b","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-19954","aliases":[],"title":"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","description":"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.","state":0,"publishedAt":"2026-10-05T06:54:09.352+00:00","modifiedAt":"2026-10-06T17:52:09.371+00:00","affected":[{"ecosystem":"https://cpan.org/modules","name":"Net-Whois-Raw","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"collectionURL\": \"https://cpan.org/modules\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"modules\": [\n                        \"Net::Whois::Raw\"\n                    ],\n                    \"packageName\": \"Net-Whois-Raw\",\n                    \"packageURL\": \"pkg:cpan/Net-Whois-Raw\",\n                    \"programFiles\": [\n                        \"bin/pwhois\"\n                    ],\n                    \"programRoutines\": [\n                        {\n                            \"name\": \"to_punycode\"\n                        }\n                    ],\n                    \"repo\": \"https://github.com/regru/Net-Whois-Raw\",\n                    \"versions\": [\n                        {\n                            \"lessThan\": \"2.99044\",\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"versionType\": \"custom\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://metacpan.org/release/NALOBIN/Net-Whois-Raw-2.99044/changes","https://security.metacpan.org/patches/N/Net-Whois-Raw/2.99043/CVE-2026-19954-r1.patch","https://github.com/regru/Net-Whois-Raw/issues/34","https://github.com/regru/Net-Whois-Raw/pull/35","https://metacpan.org/release/PJCJ/Net-IDN-Encode-2.590-TRIAL/view/lib/Net/IDN/Punycode.pm#WARNING","https://www.rfc-editor.org/rfc/rfc5891#section-5.2"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-19954","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-19954","identifiers":["CVE-2026-19954"]},"retained":false,"historicalAffected":[]}],"coverage":[]}