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.

The remote Fedora 45 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-535e7d2281 advisory.

    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. This tool now uses Net::IDN::Encode instead of     Net::IDN::Punycode, which fixes the issue.

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 44 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-78d9d79627 advisory.

    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. This tool now uses Net::IDN::Encode instead of     Net::IDN::Punycode, which fixes the issue.

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-c330a15c68 advisory.

    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. This tool now uses Net::IDN::Encode instead of     Net::IDN::Punycode, which fixes the issue.

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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.
    (CVE-2026-19954)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
374667	Fedora 45 : perl-Net-Whois-Raw (2026-535e7d2281)	Nessus	Fedora Local Security Checks	Local	medium
369382	Fedora 44 : perl-Net-Whois-Raw (2026-78d9d79627)	Nessus	Fedora Local Security Checks	Local	medium
369370	Fedora 43 : perl-Net-Whois-Raw (2026-c330a15c68)	Nessus	Fedora Local Security Checks	Local	medium
362954	Linux Distros Unpatched Vulnerability : CVE-2026-19954	Nessus	Misc.	Local	medium

Detections

Analytics

CVE-2026-19954

medium

Tenable Plugins

medium

medium

medium

medium