rust-hickory-proto: Hickory DNS hickory-proto from 0.3.1 before 0.26.1 contains a denial of service vulnerability in BinEncoder that allo...
CVE-2026-123608 is fixed in rust-hickory-proto on 1 platform by DEBIAN-CVE-2026-123608 (version 0.26.1-1), released November 9, 2026. It is not reported as exploited. Patch Radar priority: High.
Hickory DNS hickory-proto from 0.3.1 before 0.26.1 contains a denial of service vulnerability in BinEncoder that allows remote attackers to exhaust CPU through quadratic-time name compression. Attackers can send malicious DNS messages with many records that add many candidate labels and trigger repeated linear scans during encoding, amplifying CPU exhaustion.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| rust-hickory-proto · Debian 14 | 0.26.1-1 | DEBIAN-CVE-2026-123608 | Nov 9, 2026 |
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