CVE-2026-33257

EUVD-2026-24720
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
OXCNA
5.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
powerdnsauthoritative
5.0.0 ≤
𝑥
< 5.0.4
CNA
powerdnsauthoritative
4.9.0 ≤
𝑥
< 4.9.14
CNA
powerdnsauthoritative
1.9.0 ≤
𝑥
< 1.9.13
CNA
powerdnsauthoritative
2.0.0 ≤
𝑥
< 2.0.4
CNA
powerdnsauthoritative
5.4.0 ≤
𝑥
< 5.4.1
CNA
powerdnsauthoritative
5.3.0 ≤
𝑥
< 5.3.6
CNA
powerdnsauthoritative
5.2.0 ≤
𝑥
< 5.2.9
CNA
Debian logo
Debian Releases
Debian Product
Codename
dnsdist
bookworm
vulnerable
bullseye
vulnerable
forky
vulnerable
sid
2.0.4-1
fixed
trixie
vulnerable
Common Weakness Enumeration
References
https://docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-2026-05.html
https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-powerdns-2026-03.html
https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-04.html