CVE-2026-33594

CVSS Score & Metrics

Base Score

5.3 / 10

Vector String

                                        CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L                                    

Vulnerability Description

A client can trigger excessive memory allocation by generating a lot of queries that are routed to an overloaded DoH backend, causing queries to accumulate into a buffer that will not be released until the end of the connection.

Vulnerability Details

Published Date

April 22, 2026

Last Modified

April 24, 2026

CWE ID

CWE-770

Source

NVD

Vendor

PowerDNS

Product

DNSdist

External References

https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-04.html

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

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