CVE-2025-47912

MEDIUM

Go net/url Parse - Bracketed Host Validation Bypass

Title source: manual
STIX 2.1

Description

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.

References (5)

Core 5

Scores

CVSS v3 5.3
EPSS 0.0002
EPSS Percentile 6.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

Status published
Products (1)
golang/go < 1.24.8
Published Oct 29, 2025
Tracked Since Feb 18, 2026