CVE-2026-33611
MEDIUMCVSS 4.9/10EPSS 0.42%
Last modified
CVE-2026-33611 is a medium-severity vulnerability rated 4.9/10 on the CVSS scale. 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.. EPSS estimates a 0.42% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Powerdns | Authoritative | >= 4.9.0, < 4.9.14 |
| Powerdns | Authoritative | >= 5.0.0, < 5.0.4 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is 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.
How severe is CVE-2026-33611?
CVE-2026-33611 has a CVSS score of 4.9/10 (MEDIUM severity). The EPSS model estimates a 0.42% probability of exploitation in the next 30 days.
How do I fix CVE-2026-33611?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2026-33611?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST