CVE-2026-123607
Public on 2026-11-08
Modified on 2026-11-11
Description
Hickory DNS hickory-proto 0.25.0-alpha.3 through 0.25.2 and hickory-net before 0.26.1 contain an unbounded loop vulnerability in DnssecDnsHandle NSEC3 closest-encloser proof validation when the SOA owner is not an ancestor of the QNAME. Upstream attackers can return NoData or NXDomain responses with a cross-zone SOA record to panic debug builds or exhaust memory in release builds.
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 2023 | aardvark-dns | Not Affected | ||
| Amazon Linux 2027 Preview | aardvark-dns | Not Affected | ||
| Amazon Linux 2 - Aws-nitro-enclaves-cli Extra | aws-nitro-enclaves-cli | Not Affected | ||
| Amazon Linux 2023 | aws-nitro-enclaves-cli | Not Affected | ||
| Amazon Linux 2027 Preview | aws-nitro-enclaves-cli | Not Affected |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |