# idna (PyPI) vulnerabilities

2 known vulnerabilities (2 medium), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: not known (cve.now hasn't read this package's releases)
- Newest unaffected release: not known without release data
- Registry: https://pypi.org/project/idna/

## Advisories (2)

### [CVE-2026-45409](https://cve.now/CVE-2026-45409): Internationalized Domain Names in Applications (IDNA): Specially crafted inputs to idna.encode() can bypass CVE-2024-3651 fix

- Severity: Medium 6.9
- Published: Jun 5, 2026
- Affected: fixed in 3.15.

### [CVE-2024-3651](https://cve.now/CVE-2024-3651): Denial of Service via Quadratic Complexity in kjd/idna

- Severity: Medium 6.2
- Published: Jul 7, 2024
- Affected: from 0.1, fixed in 3.7; fixed in 3.7.

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