# CVE-2026-33608: An attacker can send a notify request that causes a new secondary domain to be added to the bind backend, but causes…

Source: https://junglewise.ai/threats/cve-2026-33608-an-attacker-can-send-a-notify-request-that-causes-a-new-secondary  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-04-22  
License: CC BY 4.0 with a link back

CVE-2026-33608 · Severity: high · CVSS 7.4 · Published 2026-04-22

An attacker can send a notify request that causes a new secondary domain to be added to the bind backend, but causes said backend to update its configuration to an invalid one, leading to the backend no longer able to run on the next restart, requiring manual operation to fix it.

Technologies: [Powerdns Authoritative](https://junglewise.ai/threats/technologies/authoritative). Vendors: [Powerdns](https://junglewise.ai/threats/vendors/powerdns).

## Quick answers

**Is CVE-2026-33608 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-33608 being exploited in the wild.

**How severe is CVE-2026-33608?** High severity, with a CVSS score of 7.4, published 22 April 2026.

**Which products and versions are affected?** Powerdns Authoritative. The advisory does not name versions.

**Is there a fix for CVE-2026-33608?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**Am I affected by CVE-2026-33608?** Check whether you run Powerdns Authoritative. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Powerdns Authoritative

## Related threats

- [A rogue primary server may cause file descriptor exhaustion and eventually a denial of service, when a PowerDNS…](https://junglewise.ai/threats/cve-2026-33610-a-rogue-primary-server-may-cause-file-descriptor-exhaustion-and)
- [Incomplete escaping of LDAP queries when running with 8bit-dns enabled allows users to perform queries of internal domain subtrees.](https://junglewise.ai/threats/cve-2026-33609-incomplete-escaping-of-ldap-queries-when-running-with-8bit-dns)
- [An attacker can send a web request that causes unlimited memory allocation in the internal web server, leading to a…](https://junglewise.ai/threats/cve-2026-33260-an-attacker-can-send-a-web-request-that-causes-unlimited-memory)
- [An attacker can send a web request that causes unlimited memory allocation in the internal web server, leading to a…](https://junglewise.ai/threats/cve-2026-33257-an-attacker-can-send-a-web-request-that-causes-unlimited-memory)