rust-hickory-net: DNSSEC validation in Hickory DNS hickory-net 0.26.0-beta.1 before 0.26.2 and hickory-proto through 0.26.0-alpha.1 doe...
CVE-2026-123579 is fixed in rust-hickory-net on 1 platform by DEBIAN-CVE-2026-123579 (version 0.26.3-1), released November 9, 2026. It is not reported as exploited. Patch Radar priority: Routine.
DNSSEC validation in Hickory DNS hickory-net 0.26.0-beta.1 before 0.26.2 and hickory-proto through 0.26.0-alpha.1 does not distinguish NODATA responses from wildcard-expanded positive responses. For a query that should return NODATA in a zone with wildcard records, an attacker can combine an NSEC3 record matching the query name with a signed wildcard record into a bogus positive response that validation accepts.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| rust-hickory-net · Debian 14 | 0.26.3-1 | DEBIAN-CVE-2026-123579 | Nov 9, 2026 |
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