medium5.0
CVE-2026-33259
Having many concurrent transfers of the same RPZ can lead to inconsistent RPZ data, use after free and/or a crash of the recursor.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Powerdns | Recursor | from 5.2.0 before 5.2.9 from 5.3.0 before 5.3.6 Version 5.4.0 |