CVE-2026-46600

HIGH

Parsing an invalid SVCB or HTTPS RR can panic in golang.org/x/net/dns/dnsmessage

Title source: cna
STIX 2.1

Description

Parsing an invalid SVCB or HTTPS RR can panic when the size of a parameter value overflows the message buffer.

References (3)

Core 3

Scores

CVSS v3 7.5
EPSS 0.0034
EPSS Percentile 26.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-125
Status published
Products (1)
golang.org/x/net/golang.org/x/net/dns/dnsmessage < 0.56.0
Published Jul 21, 2026
Tracked Since Jul 22, 2026