CVE-2026-33257
5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| PowerDNS | Authoritative | 5.0.0 < 5.0.4 | affected |
| PowerDNS | Authoritative | 4.9.0 < 4.9.14 | affected |
| PowerDNS | DNSdist | 1.9.0 < 1.9.13 | affected |
| PowerDNS | DNSdist | 2.0.0 < 2.0.4 | affected |
| PowerDNS | Recursor | 5.4.0 < 5.4.1 | affected |
| PowerDNS | Recursor | 5.3.0 < 5.3.6 | affected |
| PowerDNS | Recursor | 5.2.0 < 5.2.9 | affected |
Weaknesses
- Allocation of Resources Without Limits or Throttling
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: yes
- Technical Impact: partial
References
- https://docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-2026-05.html
- https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-04.html
- https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-powerdns-2026-03.html
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