CVE-2026-39155
MEDIUM
6.5
CVSS Severity Score
Vulnerability Description
Knot DNS before 3.4.10 and 3.5.x before 3.5.4 contains a vulnerability in mod-onlinesign where the next NSEC owner name can be computed incorrectly. This can create an overly broad authenticated denial interval, allowing downstream validating resolvers using aggressive negative caching to synthesize negative answers for legitimate names and causing resolver-side denial of service.
Affected Platforms (CPE)
No CPE configurations currently published for this record.