CVE-2026-42389
Reject more queries with invalid header values
- State
- Published
- Severity
- 5.3 Medium
- Published
- Jun 25, 2026
- Updated
- Jun 25, 2026
- Reserved
- Apr 27, 2026
Description
This fix provides extra hardening for the 5.4.x branch by doing extra validation of incoming answers from authoritative servers.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.3 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N | OX |
Weaknesses
- CWE-20 Improper Input Validation
Affected Products
| Product | Versions |
|---|---|
RecursorPowerDNS |
|
References
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