CVE-2026-12490

When a provide-xfr is given with a tls-auth-name, a secondary requesting a transfer should provide a client certificate with that name. However, no client certificate is needed when the request comes in over TLS over the regular tls-port (and not the tls-auth-port) or over over TCP over the regular port, when the other conditions of the provide-xfr rule match.

Score

CVSS 4.0 8.2 High

Status

Analyzed - sep@nlnetlabs.nl

Published

2026-06-25

Last modified

2026-10-25

Weaknesses

CWE-284, CWE-306

Affected products

• Nsd (Nlnet Labs)
• Nsd (Nlnetlabs)

References

• https://www.nlnetlabs.nl/downloads/nsd/CVE-2026-12490.txt