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MEDIUM · 5.3

CVE-2026-33595

A client can trigger excessive memory allocation by generating a lot of errors responses over a single DoQ and DoH3 connection, as some resources were not properly released until the end of the connec...

Vulnerability Description

A client can trigger excessive memory allocation by generating a lot of errors responses over a single DoQ and DoH3 connection, as some resources were not properly released until the end of the connection.

CVSS Score

5.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW

Affected Products

VendorProductVersions
PowerdnsDnsdist>= 1.9.0, < 1.9.13

Related Weaknesses (CWE)

CWE-770

References

FAQ

What is CVE-2026-33595?

CVE-2026-33595 is a vulnerability with a CVSS score of 5.3 (MEDIUM). A client can trigger excessive memory allocation by generating a lot of errors responses over a single DoQ and DoH3 connection, as some resources were not properly released until the end of the connec...

How severe is CVE-2026-33595?

CVE-2026-33595 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-33595?

Check the references section above for vendor advisories and patch information. Affected products include: Powerdns Dnsdist.