MEDIUM 6.5 Microsoft
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
Microsoft Security Update 2026-Aug: URI versions before 5.36 for Perl encode non-NFC host names to non-standard punycode labels via missing normalization in nameprep
Affected Products
- azl3 perl-URI 5.21-2 on Azure Linux 3.0
- azl3 perl-URI 5.21-3 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-19953
- https://nvd.nist.gov/vuln/detail/CVE-2026-19953
This medium severity vulnerability with a CVSS score of 6.5 was published on 2026-08-11 via Microsoft. Affected: azl3 perl-URI 5.21-2 on Azure Linux 3.0, azl3 perl-URI 5.21-3 on Azure Linux 3.0.
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