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THREAT OPS › Threat News › [NVD] CVE-2026-42534 (MEDIUM 5.3) — NLnet Labs Unbound up to and including version 1.25.0 has a vulnerability in the jostle logic that could defeat its purpose and degrade resolution performance. Retransmits of the same query could renew the age of slow running queries and not allow the jostle logic to see them as

[NVD] CVE-2026-42534 (MEDIUM 5.3) — NLnet Labs Unbound up to and including version 1.25.0 has a vulnerability in the jostle logic that could defeat its purpose and degrade resolution performance. Retransmits of the same query could renew the age of slow running queries and not allow the jostle logic to see them as

lownvdPublished 2026-05-20

CVE-2026-42534 CVSS: 5.3 MEDIUM Published: 2026-05-20T10:16:27.477

NLnet Labs Unbound up to and including version 1.25.0 has a vulnerability in the jostle logic that could defeat its purpose and degrade resolution performance. Retransmits of the same query could renew the age of slow running queries and not allow the jostle logic to see them as aged and potential targets for replacement with new

Indicators of compromise

CVE-2026-42534cve

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-42534