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I. Basic Information for CVE-2026-33611
Vulnerability Information

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Vulnerability Title
Insufficient validation of HTTPS and SVCB records
Source: NVD (National Vulnerability Database)
Vulnerability Description
An operator allowed to use the REST API can cause the Authoritative server to produce invalid HTTPS or SVCB record data, which can in turn cause LMDB database corruption, if using the LMDB backend.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/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 输入验证错误漏洞
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存在输入验证错误漏洞,该漏洞源于允许使用REST API的操作员可能导致权威服务器生成无效的HTTPS或SVCB记录数据,如果使用LMDB后端,可能进而导致LMDB数据库损坏。
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
VendorProductAffected VersionsCPESubscribe
PowerDNSAuthoritative 5.0.0 ~ 5.0.4 -
II. Public POCs for CVE-2026-33611
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III. Intelligence Information for CVE-2026-33611
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IV. Related Vulnerabilities
V. Comments for CVE-2026-33611

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