# Hickory-Dns Hickory-Resolver vulnerabilities Source: https://junglewise.ai/threats/technologies/hickory-resolver Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/technologies/hickory-resolver.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 10 vulnerabilities in Hickory-Dns Hickory-Resolver: 7 in the last 7 days and 10 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-123606, was published on 8 November 2026. 7 vulnerabilities in the last four weeks, up 133% on the four before (3). ## Counts - Last 7 days: 7 - Last 30 days: 7 - Last 90 days: 10 - All time: 10 (0 critical, 0 exploited in the wild) ## About Hickory-Dns Hickory-Resolver Rust library for DNS resolver functionality supporting recursive and iterative resolution. ## Latest Hickory-Dns Hickory-Resolver vulnerabilities - [CVE-2026-123606: hickory-dns recursor glueless-NS referral amplification](https://junglewise.ai/threats/cve-2026-123606-the-hickory-dns-recursor-in-hickory-recursor-0-25-0-alpha-3) (high, CVSS 7.5, published 8 Nov 2026) - [CVE-2026-123604: Hickory DNS hickory-resolver unbounded retry loop resource exhaustion](https://junglewise.ai/threats/cve-2026-123604-hickory-dns-hickory-resolver-0-26-0-beta-1-before-0-26-2) (high, CVSS 7.5, published 8 Nov 2026) - [CVE-2026-123603: Hickory DNS IPv4-mapped IPv6 canonicalization bypass](https://junglewise.ai/threats/cve-2026-123603-hickory-proto-and-hickory-resolver-0-26-0-before-0-26-2-hickory) (medium, CVSS 6.5, published 8 Nov 2026) - [CVE-2026-123602: Hickory DNS recursor cache poisoning via ghost domain attack](https://junglewise.ai/threats/cve-2026-123602-the-hickory-dns-recursor-in-all-versions-of-hickory-recursor-and) (medium, CVSS 5.9, published 8 Nov 2026) - [CVE-2026-123588: Hickory DNS recursive resolver denial of service via cached empty connection pool](https://junglewise.ai/threats/cve-2026-123588-the-recursive-resolver-in-hickory-dns-all-versions-of-the) (high, CVSS 7.5, published 8 Nov 2026) - [CVE-2026-123586: Hickory DNS query amplification in recursive resolver](https://junglewise.ai/threats/cve-2026-123586-hickory-dns-0-25-0-alpha-3-through-0-25-2-contains-a-query) (high, CVSS 7.5, published 8 Nov 2026) - [CVE-2026-123585: Hickory DNS query amplification via irrelevant CNAME records](https://junglewise.ai/threats/cve-2026-123585-the-hickory-resolver-component-of-hickory-dns-0-25-0-before-0-26) (medium, CVSS 5.3, published 8 Nov 2026) - [hickory-resolver follows irrelevant CNAME records](https://junglewise.ai/threats/hickory-resolver-follows-irrelevant-cname-records-034cb075) (medium, published 5 Oct 2026) - [hickory-resolver unbounded TC-retry loop resource exhaustion](https://junglewise.ai/threats/hickory-resolver-unbounded-tc-retry-loop-in-nameserverpool-try-send-05a82881) (high, published 5 Oct 2026) - [CVE-2026-93657: hickory-resolver DNSSEC validation bypass in lookup APIs](https://junglewise.ai/threats/cve-2026-93657-hickory-resolver-dnssec-validation-bypass-in-lookup-apis) (high, CVSS 7.5, published 18 Sep 2026) ## Most severe Hickory-Dns Hickory-Resolver vulnerabilities - [CVE-2026-93657: hickory-resolver DNSSEC validation bypass in lookup APIs](https://junglewise.ai/threats/cve-2026-93657-hickory-resolver-dnssec-validation-bypass-in-lookup-apis) (high, CVSS 7.5, published 18 Sep 2026) - [CVE-2026-123606: hickory-dns recursor glueless-NS referral amplification](https://junglewise.ai/threats/cve-2026-123606-the-hickory-dns-recursor-in-hickory-recursor-0-25-0-alpha-3) (high, CVSS 7.5, published 8 Nov 2026) - [CVE-2026-123604: Hickory DNS hickory-resolver unbounded retry loop resource exhaustion](https://junglewise.ai/threats/cve-2026-123604-hickory-dns-hickory-resolver-0-26-0-beta-1-before-0-26-2) (high, CVSS 7.5, published 8 Nov 2026) - [CVE-2026-123588: Hickory DNS recursive resolver denial of service via cached empty connection pool](https://junglewise.ai/threats/cve-2026-123588-the-recursive-resolver-in-hickory-dns-all-versions-of-the) (high, CVSS 7.5, published 8 Nov 2026) - [CVE-2026-123586: Hickory DNS query amplification in recursive resolver](https://junglewise.ai/threats/cve-2026-123586-hickory-dns-0-25-0-alpha-3-through-0-25-2-contains-a-query) (high, CVSS 7.5, published 8 Nov 2026) - [hickory-resolver unbounded TC-retry loop resource exhaustion](https://junglewise.ai/threats/hickory-resolver-unbounded-tc-retry-loop-in-nameserverpool-try-send-05a82881) (high, published 5 Oct 2026) - [CVE-2026-123603: Hickory DNS IPv4-mapped IPv6 canonicalization bypass](https://junglewise.ai/threats/cve-2026-123603-hickory-proto-and-hickory-resolver-0-26-0-before-0-26-2-hickory) (medium, CVSS 6.5, published 8 Nov 2026) - [CVE-2026-123602: Hickory DNS recursor cache poisoning via ghost domain attack](https://junglewise.ai/threats/cve-2026-123602-the-hickory-dns-recursor-in-all-versions-of-hickory-recursor-and) (medium, CVSS 5.9, published 8 Nov 2026) - [CVE-2026-123585: Hickory DNS query amplification via irrelevant CNAME records](https://junglewise.ai/threats/cve-2026-123585-the-hickory-resolver-component-of-hickory-dns-0-25-0-before-0-26) (medium, CVSS 5.3, published 8 Nov 2026) - [hickory-resolver follows irrelevant CNAME records](https://junglewise.ai/threats/hickory-resolver-follows-irrelevant-cname-records-034cb075) (medium, published 5 Oct 2026) ## Vulnerabilities per week 7 vulnerabilities in the last four weeks, up 133% on the four before (3). | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 0 | 0 | 0 | | 7 Sep 2026 | 0 | 0 | 0 | | 14 Sep 2026 | 1 | 0 | 0 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 2 | 0 | 0 | | 12 Oct 2026 | 0 | 0 | 0 | | 19 Oct 2026 | 0 | 0 | 0 | | 26 Oct 2026 | 0 | 0 | 0 | | 2 Nov 2026 | 7 | 0 | 0 | | 9 Nov 2026 | 0 | 0 | 0 | ## Other Hickory-Dns technologies - [Hickory-Dns Hickory-Proto](https://junglewise.ai/threats/technologies/hickory-dns-hickory-proto): 18 vulnerabilities - [Hickory-Dns Hickory-Net](https://junglewise.ai/threats/technologies/hickory-dns-hickory-net): 14 vulnerabilities - [Hickory-Dns Hickory-Recursor](https://junglewise.ai/threats/technologies/hickory-dns-hickory-recursor): 5 vulnerabilities - [Hickory-Dns Hickory DNS](https://junglewise.ai/threats/technologies/hickory-dns): 4 vulnerabilities ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Hickory-Dns Hickory-Resolver vulnerabilities", https://junglewise.ai/threats/technologies/hickory-resolver, 9 November 2026.