# CVE-2026-33259

> Vulnerability · severity: **MEDIUM** (CVSS 5).

## Description

Having many concurrent transfers of the same RPZ can lead to inconsistent RPZ data, use after free and/or a crash of the recursor. Normally concurrent transfers of the same RPZ zone can only occur with a malfunctioning RPZ provider.

## Key facts

- **CVE ID:** CVE-2026-33259
- **Published:** 2026-04-22
- **CVSS severity:** MEDIUM
- **CVSS base score:** 5
- **CWE codes:** CWE-416

## Affected products

- `powerdns:recursor`

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-33259

## Citation

> AI Analytics. CVE-2026-33259. Retrieved 2026-07-17 from https://api.ai-analytics.org/cve/CVE-2026-33259. Derived from NIST NVD. Licensed CC0.

---

*[Dataset catalog](https://api.ai-analytics.org/datasets/) · [AI Analytics](https://api.ai-analytics.org/) · CC0 1.0*