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Details of issue NIXPKGS-2026-1230

NIXPKGS-2026-1230
published 2 months ago
Permalink CVE-2026-33596
3.1 LOW
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Adjacent (A)
  • Attack Complexity (AC): High (H)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): None (N)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): None (N)
  • Integrity (I): None (N)
  • Availability (A): Low (L)
  • Modified Attack Vector (MAV): Adjacent (A)
  • Modified Attack Complexity (MAC): High (H)
  • Modified Privileges Required (MPR): None (N)
  • Modified User Interaction (MUI): None (N)
  • Modified Confidentiality (MC): None (N)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): None (N)
  • Modified Availability (MA): Low (L)
updated 2 months ago by @LeSuisse Activity log
  • Created suggestion 2 months ago
  • @LeSuisse accepted 2 months ago
  • @LeSuisse published on GitHub 2 months ago
TCP backend stream ID overflow

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.

Affected products

dnsdist
  • <2.0.4
  • <1.9.13

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