CVE-2026-45409

medium

Published 2026-05-19 · Modified 2026-05-19

CVSS v3

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CVSS v2

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VIR risk

5.5

Description

Internationalized Domain Names in Applications (IDNA): Specially crafted inputs to idna.encode() can bypass CVE-2024-3651 fix

Exploit likelihood

20%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2026-45409.html

OS	Version	Status	Fixed in
sles		affected

Ecosystem	Package	Vulnerable	Fixed
PyPI	idna	`<3.15`	`3.15`
PIP	idna	`< 3.15`	`3.15`

Verify integrity in audit chain (admin only). AS-IS.