Bug 2568787 (CVE-2026-123577) - CVE-2026-123577 hickory-dns: Hickory DNS: Denial of Service via unbounded DoH request bodies
Summary: CVE-2026-123577 hickory-dns: Hickory DNS: Denial of Service via unbounded DoH...
Keywords:
Status: NEW
Alias: CVE-2026-123577
Product: Security Response
Classification: Other
Component: vulnerability-draft
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
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Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-11-08 02:06 UTC by OSIDB Bzimport
Modified: 2026-11-08 03:05 UTC (History)
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Description OSIDB Bzimport 2026-11-08 02:06:15 UTC 
Hickory DNS from 0.24.0 before 0.26.2 contains a resource exhaustion vulnerability that allows remote attackers to consume server memory via unbounded DoH request bodies. Attackers can send large request bodies over HTTP/2 or HTTP/3 to a DNS over HTTP server, causing memory exhaustion and denial of service.
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