Bug 2568709 (CVE-2026-123573) - CVE-2026-123573 hickory-proto: hickory-dns: hickory-dns: Denial of Service via malformed SVCB and HTTPS records
Summary: CVE-2026-123573 hickory-proto: hickory-dns: hickory-dns: Denial of Service vi...
Keywords:
Status: NEW
Alias: CVE-2026-123573
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 02:00 UTC by OSIDB Bzimport
Modified: 2026-11-08 02:28 UTC (History)
0 users

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Description OSIDB Bzimport 2026-11-08 02:00:24 UTC 
hickory-dns from 0.20.1 before 0.26.2 contains a denial of service vulnerability in the hickory-proto SVCB and HTTPS record presentation format parser. Attackers can supply untrusted zone files where only a single or double quote replaces a service parameter value, triggering a panic that crashes the parsing process.
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