rust-hickory-server: Hickory DNS from 0.24.0 before 0.26.2 contains a resource exhaustion vulnerability that allows remote attackers to co...
CVE-2026-123577 is fixed in rust-hickory-server on 1 platform by DEBIAN-CVE-2026-123577 (version 0.26.3-1), released November 9, 2026. It is not reported as exploited. Patch Radar priority: High.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| rust-hickory-server · Debian 14 | 0.26.3-1 | DEBIAN-CVE-2026-123577 | Nov 9, 2026 |
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