AZL-87846 CVE-2026-39821 affecting package kata-containers-cc for versions less than 3.15.0.aks0-12

The ToASCII and ToUnicode functions incorrectly accept Punycode-encoded labels that decode to an ASCII-only label. For example, ToUnicode"xn--example-.com" incorrectly returns the name "example.com" rather than an error. This behavior can lead to privilege escalation in programs using the idna...