CVE-2026-42396
Medium
Description
Insufficient Validation of Member Zone Data May Cause Catalog Zone Transfer to Fail
SeverityMedium
CVSS4.9
Exploit probability—
ProductPowerdns Authoritative
PublishedMay 21, 2026
First seenMay 21, 2026
Weakness typeCWE-94Code injection
How to fix
Update
- powerdns authoritative4.9.15, 5.0.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| powerdns authoritative | 4.7.0 ≤ v < 4.9.15, 5.0.0 ≤ v < 5.0.5 | 4.9.15, 5.0.5 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.