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Medium ALSA-2026:84588 1 CVE

Moderate: perl-URI security update

Published Oct 19, 2026 · Updated Oct 29, 2026

Ecosystem: AlmaLinux

Summary

This module implements the URI class. Objects of this class represent "Uniform Resource Identifier references" as specified in RFC 2396 (and updated by RFC 2732).

Security Fix(es):

* URI: URI (for Perl): Security bypass due to incorrect hostname encoding via missing Unicode normalization (CVE-2026-19953)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Fixed packages 1

ReleasePackageFixed in
AlmaLinux · 9 perl-URI 5.09-3.el9_8.1

Vulnerabilities 1

  • Medium 6.5
    CVE-2026-19953

    URI versions before 5.36 for Perl encode non-NFC host names to non-standard punycode labels via missing normalization in nameprep

    URI versions before 5.36 for Perl encode non-NFC host names to non-standard punycode labels via missing normalization in nameprep. nameprep lowercases each host label but performs no Unicode normalization. IDNA requires a label to be normalized to Form C befo…

    liburi-perl liburi-perl perl-URI Debian Ubuntu Azure Linux

References

  • report
    https://access.redhat.com/security/cve/CVE-2026-19953
  • report
    https://bugzilla.redhat.com/2526492
  • advisory
    https://errata.almalinux.org/9/ALSA-2026-84588.html