The zone file parser in the hickory-proto crate of Hickory DNS 0.24.0 before 0.26.2 panics when a single token in a zone file is 4096 bytes or longer. Attackers who can supply untrusted zone files to an application using the parser can trigger the panic to cause a denial of service.
Metrics
Affected Vendors & Products
References
History
Mon, 09 Nov 2026 20:30:00 +0000
| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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Mon, 09 Nov 2026 17:30:00 +0000
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| First Time appeared |
Hickory-dns
Hickory-dns hickory-dns |
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| Vendors & Products |
Hickory-dns
Hickory-dns hickory-dns |
Sun, 08 Nov 2026 01:45:00 +0000
| Type | Values Removed | Values Added |
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| Description | The zone file parser in the hickory-proto crate of Hickory DNS 0.24.0 before 0.26.2 panics when a single token in a zone file is 4096 bytes or longer. Attackers who can supply untrusted zone files to an application using the parser can trigger the panic to cause a denial of service. | |
| Title | Hickory DNS 0.24.0 before 0.26.2 Denial of Service via Zone File Parser | |
| Weaknesses | CWE-20 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-11-08T01:38:10.613Z
Updated: 2026-11-09T14:31:12.367Z
Reserved: 2026-11-06T00:53:14.313Z
Link: CVE-2026-123574
Updated: 2026-11-09T14:31:09.333Z
Status : Deferred
Published: 2026-11-08T02:16:50.450
Modified: 2026-11-10T22:15:59.797
Link: CVE-2026-123574
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