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MEDIUM · 6.5

CVE-2026-33611

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.

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.

CVSS Score

6.5

MEDIUM

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

Affected Products

VendorProductVersions
PowerdnsAuthoritative>= 4.9.0, < 4.9.14

Related Weaknesses (CWE)

CWE-190

References

FAQ

What is CVE-2026-33611?

CVE-2026-33611 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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.

How severe is CVE-2026-33611?

CVE-2026-33611 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-33611?

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