CVE-2026-33608— Incomplete domain name sanitization during
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I. Basic Information for CVE-2026-33608
Vulnerability Information
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Vulnerability Title
Incomplete domain name sanitization during
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
PowerDNS Authoritative Server 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PowerDNS Authoritative Server是荷兰PowerDNS公司的一款DNS服务器。 PowerDNS Authoritative Server存在代码注入漏洞，该漏洞源于攻击者可以发送通知请求，导致新的辅助域被添加到bind后端，但使后端配置更新为无效配置，导致后端在下次重启后无法运行。
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 | 5.0.0 ~ 5.0.4 | - |
II. Public POCs for CVE-2026-33608
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · PowerDNS · 2026-04-22 · 22 CVEs total
| CVE-2026-33593 | 7.5 HIGH | Denial of service via crafted DNSCrypt query |
| CVE-2026-33602 | 6.5 MEDIUM | Off-by-one access when processing crafted UDP responses |
| CVE-2026-33611 | 6.5 MEDIUM | Insufficient validation of HTTPS and SVCB records |
| CVE-2026-33261 | 5.9 MEDIUM | Null pointer accces in aggressive NSEC(3) cache |
| CVE-2026-33262 | 5.9 MEDIUM | Insufficient validation of cookie reply |
| CVE-2026-33610 | 5.9 MEDIUM | Possible file descriptor exhaustion in forward-dnsupdate |
| CVE-2026-33260 | 5.3 MEDIUM | Insufficient input validation of internal webserver |
| CVE-2026-33609 | 5.3 MEDIUM | LDAP DN injection |
| CVE-2026-33254 | 5.3 MEDIUM | Resource exhaustion via DoQ/DoH3 connections |
| CVE-2026-33595 | 5.3 MEDIUM | DoQ/DoH3 excessive memory allocation |
| CVE-2026-33594 | 5.3 MEDIUM | Outgoing DoH excessive memory allocation |
| CVE-2026-33256 | 5.3 MEDIUM | Unbounded memory allocation by internal web server |
| CVE-2026-33257 | 5.3 MEDIUM | Insufficient input validation of internal webserver |
| CVE-2026-33258 | 5.3 MEDIUM | Crafted zones can cause increased resource usage |
| CVE-2026-33259 | 5.0 MEDIUM | Concurrent modification of RPZ data can lead to denial of servce |
| CVE-2026-33598 | 4.8 MEDIUM | Out-of-bounds read in cache inspection via Lua |
| CVE-2026-33601 | 4.4 MEDIUM | Insufficient validation of zonemd record |
| CVE-2026-33600 | 4.4 MEDIUM | Null pointer dereference in RPZ transfer |
| CVE-2026-33597 | 3.7 LOW | PRSD detection denial of service |
| CVE-2026-33596 | 3.1 LOW | TCP backend stream ID overflow |
Showing top 20 of 22 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Authoritative
V. Comments for CVE-2026-33608
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