VULNERABILITY INTELLIGENCE

CVE-2026-45409

CVSS score6.9 MEDIUM

EPSS probability1.39%

CISA KEVNot currently listed

Published2026-06-05

Last modified2026-07-23

Description

Internationalized Domain Names in Applications (IDNA) for Python provides support for Internationalized Domain Names in Applications (IDNA) and Unicode IDNA Compatibility Processing. In versions prior to 3.15, payloads such as `"\u0660" * N` or `"\u30fb" * N + "\u6f22"` utilize the `valid_contexto` …