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fkie_cve-2026-19954

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.

pwhois 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".

The Net::Whois::Raw library modules are not affected.

GHSA-m543-jcgv-fpx5

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.

The Net::Whois::Raw library modules are not affected.

UBUNTU-CVE-2026-19954

Affected: Ubuntu:16.04:LTS: libnet-whois-raw-perl, Ubuntu:18.04:LTS: libnet-whois-raw-perl, Ubuntu:20.04:LTS: libnet-whois-raw-perl, Ubuntu:22.04:LTS: libnet-whois-raw-perl, Ubuntu:24.04:LTS: libnet-whois-raw-perl, Ubuntu:26.04:LTS: libnet-whois-raw-perl

(Net::Whois::Raw versions before 2.99044 for Perl ship a pwhois command ...)