CVE-2026-33257: Insufficient input validation of internal webserver
PowerDNS · Authoritative
Vendor fix available · Affected: PowerDNS Authoritative · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 44% of scored CVEs
DescriptionCVE.org
An attacker can send a web request that causes unlimited memory allocation in the internal web server, leading to a denial of service. The internal web server is disabled by default.
Affected products3
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- PowerDNS · Authoritativefrom 5.0.0 before 5.0.4; from 4.9.0 before 4.9.14
- PowerDNS · DNSdistfrom 1.9.0 before 1.9.13; from 2.0.0 before 2.0.4
- PowerDNS · Recursorfrom 5.4.0 before 5.4.1; from 5.3.0 before 5.3.6; from 5.2.0 before 5.2.9
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- PowerDNS
- Published
- April 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-33257 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.
References
- NVD entrynvd.nist.gov
- CVE recordcve.org
- Weakness CWE-770cwe.mitre.org
- docs.powerdns.com/authoritative/security-advisories/powerdns-advdocs.powerdns.com
- dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-20dnsdist.org
- docs.powerdns.com/recursor/security-advisories/powerdns-advisorydocs.powerdns.com