CVE-2026-96405

5.3 Moyenne

Publiée le 21/10/2026 à 11:17 · Modifiée le 22/10/2026 à 17:22 · En attente d'analyse NVD · Source : sep@nlnetlabs.nl

Description

NLnet Labs Unbound up to and including version 1.26.1 limits compression-pointer traversal for each individual domain-name operation but has no aggregate inbound decompression-work budget. Many chained compression pointers in a message results in a lot of CPU usage following them. A malicious actor with recursive-query access and control of an ordinarily delegated authority that serves specially crafted replies can exploit the vulnerability and degrade Unbound's general performance.

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Produits concernés

NLnet Labs Unbound

Scores CVSS

Version	Score	Source	Vecteur
3.1	5.3 Moyenne	sep@nlnetlabs.nl	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L`

Faiblesses (CWE)

CWE-770

Références

https://www.nlnetlabs.nl/downloads/unbound/CVE-2026-96405.txt

Ailleurs

NVD
CVE.org
CIRCL Vulnerability-Lookup
CERT-FR
GitHub Advisories