CVE-2026-33257: Allocation of Resources Without Limits or Throttling in PowerDNS Authoritative
CVE-2026-33257 is a medium severity vulnerability in PowerDNS Authoritative versions 4. 9. 0 and 5. 0. 0. It allows an attacker to send a web request that triggers unlimited memory allocation in the internal web server, potentially causing a denial of service. The internal web server is disabled by default, which reduces the attack surface. There is no official patch or remediation level currently provided by the vendor. No known exploits are reported in the wild at this time.
AI Analysis
Technical Summary
This vulnerability involves allocation of resources without limits or throttling (CWE-770) in the internal web server component of PowerDNS Authoritative. An attacker can exploit this by sending crafted web requests that cause the server to allocate memory indefinitely, leading to denial of service conditions. The internal web server is disabled by default, which mitigates exposure unless explicitly enabled by an administrator. The CVSS v3.1 base score is 5.3, reflecting a network attack vector with no privileges or user interaction required, and impact limited to availability.
Potential Impact
Successful exploitation results in denial of service due to uncontrolled memory consumption in the internal web server. There is no impact on confidentiality or integrity. Since the internal web server is disabled by default, the risk is limited to environments where it has been enabled. No known active exploits have been reported.
Mitigation Recommendations
No official patch or fix is currently available. Since the internal web server is disabled by default, ensure it remains disabled unless necessary. If enabled, consider disabling it to mitigate the risk. Monitor vendor advisories for updates or patches addressing this vulnerability.
CVE-2026-33257: Allocation of Resources Without Limits or Throttling in PowerDNS Authoritative
Description
CVE-2026-33257 is a medium severity vulnerability in PowerDNS Authoritative versions 4. 9. 0 and 5. 0. 0. It allows an attacker to send a web request that triggers unlimited memory allocation in the internal web server, potentially causing a denial of service. The internal web server is disabled by default, which reduces the attack surface. There is no official patch or remediation level currently provided by the vendor. No known exploits are reported in the wild at this time.
CVSS v3.1
Score 5.3medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves allocation of resources without limits or throttling (CWE-770) in the internal web server component of PowerDNS Authoritative. An attacker can exploit this by sending crafted web requests that cause the server to allocate memory indefinitely, leading to denial of service conditions. The internal web server is disabled by default, which mitigates exposure unless explicitly enabled by an administrator. The CVSS v3.1 base score is 5.3, reflecting a network attack vector with no privileges or user interaction required, and impact limited to availability.
Potential Impact
Successful exploitation results in denial of service due to uncontrolled memory consumption in the internal web server. There is no impact on confidentiality or integrity. Since the internal web server is disabled by default, the risk is limited to environments where it has been enabled. No known active exploits have been reported.
Mitigation Recommendations
No official patch or fix is currently available. Since the internal web server is disabled by default, ensure it remains disabled unless necessary. If enabled, consider disabling it to mitigate the risk. Monitor vendor advisories for updates or patches addressing this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- OX
- Date Reserved
- 2026-03-18T10:06:16.572Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69e89fe619fe3cd2cd8f5f41
Added to database: 4/22/2026, 10:16:06 AM
Last enriched: 4/29/2026, 11:10:29 AM
Last updated: 6/6/2026, 11:07:26 PM
Views: 65
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.