CVE-2026-33608
Incomplete domain name sanitization during
CVSS Score
7.4
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | powerdns |
| Product | authoritative |
| Published | Apr 22, 2026 |
| Last Updated | Apr 22, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
High
Affected Versions
PowerDNS / Authoritative
5.0.0 < 5.0.4 4.9.0 < 4.9.14
References
Credits
Vitaly Simonovich