CVE-2026-46600: Parsing an invalid SVCB or HTTPS RR can panic in golang.org/x/net/dns/dnsmessage

Overview

Severity

High (CVSS 7.5)

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U

Exploit Status

Not Exploited

Patch Tuesday

2026-Jul

Released

2026-07-25

Last Updated

2026-08-23

EPSS Score

0.55% (percentile: 44.2%)

Affected Products (3)

Other

• 21483-17084
• 21489-17084
• 21676-17084

Revision History

• 2026-07-25: Information published.
• 2026-08-07: Information published.
• 2026-08-23: Information published.