CVE-2026-42396: Improper Control of Generation of Code ('Code Injection') in PowerDNS Authoritative
Insufficient Validation of Member Zone Data May Cause Catalog Zone Transfer to Fail
AI Analysis
Technical Summary
This vulnerability in PowerDNS Authoritative affects versions 4.9.0 and 5.0.0 and is characterized by insufficient validation of member zone data. This flaw can lead to failures in catalog zone transfers, potentially disrupting DNS availability. The CVSS 3.1 base score is 4.9, reflecting a medium severity with network attack vector, low attack complexity, requiring high privileges, no user interaction, and impact limited to availability. No known exploits are reported in the wild, and no official remediation or patch information is currently available.
Potential Impact
The primary impact of this vulnerability is on availability, as improper validation of member zone data may cause catalog zone transfers to fail. There is no impact on confidentiality or integrity according to the CVSS vector. This could result in DNS service disruptions in affected environments.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, administrators should monitor vendor communications for updates. No specific mitigations are provided in the available data.
CVE-2026-42396: Improper Control of Generation of Code ('Code Injection') in PowerDNS Authoritative
Description
Insufficient Validation of Member Zone Data May Cause Catalog Zone Transfer to Fail
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in PowerDNS Authoritative affects versions 4.9.0 and 5.0.0 and is characterized by insufficient validation of member zone data. This flaw can lead to failures in catalog zone transfers, potentially disrupting DNS availability. The CVSS 3.1 base score is 4.9, reflecting a medium severity with network attack vector, low attack complexity, requiring high privileges, no user interaction, and impact limited to availability. No known exploits are reported in the wild, and no official remediation or patch information is currently available.
Potential Impact
The primary impact of this vulnerability is on availability, as improper validation of member zone data may cause catalog zone transfers to fail. There is no impact on confidentiality or integrity according to the CVSS vector. This could result in DNS service disruptions in affected environments.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, administrators should monitor vendor communications for updates. No specific mitigations are provided in the available data.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- OX
- Date Reserved
- 2026-04-27T08:53:58.839Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a0edbfaba1db473627c99ec
Added to database: 5/21/2026, 10:18:34 AM
Last enriched: 5/21/2026, 10:33:52 AM
Last updated: 5/21/2026, 12:52:37 PM
Views: 5
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