What’s Vulnerable › Vulnerabilities
CVE-2026-33608: Incomplete domain name sanitization during
- Severity: critical (CVSS 9.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-04-22 · updated 2026-10-26
- Weakness: CWE-94
Description
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.
Affected products
- PowerDNS Authoritative: from 4.9.0 before 4.9.14; from 5.0.0 before 5.0.4 — fixed in 4.9.14, 5.0.4
How to fix
Upgrade to a fixed version: PowerDNS Authoritative 4.9.14, 5.0.4. Check the vendor advisory for mitigations.
References
Get alerted when CVE-2026-33608 or the next vulnerability affects your stack