CVE-2026-39155

A flaw was found in Knot DNS. The mod-onlinesign component incorrectly computes the next NSEC Next Secure owner name. This can lead to an overly broad authenticated denial interval, allowing DNS Domain Name System resolvers that use aggressive negative caching to incorrectly generate negative...

CVE-2026-39155

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...

CVE-2026-39155: Insufficient Verification of Data Authenticity

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...