CVE-2026-42001— Insufficient Validation of Autoprimary SOA Queries
Quick assessment
Affected
PowerDNS Authoritative
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
PowerDNS Authoritative是PowerDNS公司的一个DNS服务器软件。 PowerDNS Authoritative存在资源管理错误漏洞，该漏洞源于Autoprimary SOA查询验证不足。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 2
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| PowerDNS | Authoritative | 4.9.0< 4.9.15 |
affected |
5.0.0< 5.0.5 |
affected |
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I. Basic Information for CVE-2026-42001
Vulnerability Information
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Vulnerability Title
Insufficient Validation of Autoprimary SOA Queries
Source: CVE Program / CVE List V5
Vulnerability Description
Insufficient Validation of Autoprimary SOA Queries
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
PowerDNS Authoritative 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PowerDNS Authoritative是PowerDNS公司的一个DNS服务器软件。 PowerDNS Authoritative存在资源管理错误漏洞，该漏洞源于Autoprimary SOA查询验证不足。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| PowerDNS | Authoritative | 4.9.0 ~ 4.9.15 | - |
|
II. Public POCs for CVE-2026-42001
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-42001 (1)
Same Patch Batch · PowerDNS · 2026-05-21 · 5 CVEs total
| CVE-2026-42000 | 6.8 MEDIUM | Insufficient Validation of Names During AXFR |
| CVE-2026-42002 | 5.9 MEDIUM | Concurrency and locking defects in GSS-TSIG |
| CVE-2026-42396 | 4.9 MEDIUM | Insufficient Validation of Member Zone Data May Cause Catalog Zone Transfer to Fail |
| CVE-2026-41999 | 4.8 MEDIUM | Incorrect Behaviour of Views with TCP PROXY Requests |
IV. Related Vulnerabilities
Same product: Authoritative
-
CVE-2026-42005
Insufficient input validation of internal web server -
CVE-2026-41999
Incorrect Behaviour of Views with TCP PROXY Requests -
CVE-2026-42002
Concurrency and locking defects in GSS-TSIG -
CVE-2026-42000
Insufficient Validation of Names During AXFR -
CVE-2026-42396
Insufficient Validation of Member Zone Data May Cause Catalo
Same vendor: PowerDNS
-
CVE-2026-52688
RRSIGs with too few labels can lead to bypass of DNSSEC wild -
CVE-2026-52686
Wildcard CNAME proof validation bypass -
CVE-2026-52684
Prefetch Feature Allows Persistent Ghost Domain Cache Poison -
CVE-2026-42389
Reject more queries with invalid header values -
CVE-2026-52690
Spoofed answers can mark an authoritative non-EDNS capable
V. Comments for CVE-2026-42001
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