PT-2026-34440 · Powerdns+3 · Dnsdist

Ylwango613 · Published 2026-04-22 · Updated 2026-04-28 · CVE-2026-33596

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions The product name cannot be determined (affected versions not specified)

Description A client might theoretically cause a mismatch between queries sent to a backend and the received responses. This occurs when a flood of perfectly timed queries is routed to a TCP-only or DNS over TLS backend.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

CVE-2026-33596

OPENSUSE-SU-2026:10632-1

Affected Products

Dnsdist

References · 22

• https://dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-04.html · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-33596 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-33596 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-33596 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2026:10632-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-33596 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-33596 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-33596 · Vendor Advisory
• https://suse.com/security/cve/CVE-2026-33260 · Note
• https://suse.com/security/cve/CVE-2026-33602 · Note
• https://twitter.com/VulmonFeeds/status/2047001946897174993 · Twitter Post
• https://suse.com/security/cve/CVE-2026-33597 · Note
• https://dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-04.html#cve-2026-33596-tcp-backend-stream-id-overflow · Note
• https://suse.com/security/cve/CVE-2026-33595 · Note
• https://suse.com/security/cve/CVE-2026-33254 · Note