CVE-2025-47912: Golang Go

Medium severity, CVSS 5.3. EPSS: 0.5% chance of exploitation in the next 30 days.

The Parse function permits values other than IPv6 addresses to be included in square brackets within the host component of a URL. RFC 3986 permits IPv6 addresses to be included within the host component, enclosed within square brackets. For example: "http://[::1]/". IPv4 addresses and hostnames must not appear within square brackets. Parse did not enforce this requirement.

Affected products

• Golang Go: before 1.24.8 (fixed in 1.24.8); from 1.25.0, before 1.25.2 (fixed in 1.25.2)

Published 2025-10-29. Last modified 2026-10-08.