CVE-2026-33596

EUVD-2026-24935
A client might theoretically be able to cause a mismatch between queries sent to a backend and the received responses by sending a flood of perfectly timed queries that are routed to a TCP-only or DNS over TLS backend.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
3.1 LOW
ADJACENT_NETWORK
HIGH
NONE
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Affected Products (NVD)
VendorProductVersion
powerdnsdnsdist
1.9.0 ≤
𝑥
< 1.9.13
powerdnsdnsdist
2.0.0 ≤
𝑥
< 2.0.4
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
dnsdist
bookworm
vulnerable
bullseye
vulnerable
forky
2.0.5-1
fixed
sid
2.0.5-2
fixed
trixie
1.9.14-0+deb13u1
fixed
trixie (security)
1.9.14-0+deb13u1
fixed
Common Weakness Enumeration
References
https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-04.html