CVE-2025-47912
Insufficient validation of bracketed IPv6 hostnames in net/url
5.3
MEDIUM
CVSS 3.1
EPSS 0.02%
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.
How to fix CVE-2025-47912
To remediate CVE-2025-47912, upgrade the affected package to a fixed version below.
- —upgrade to 1.24.8 or later
- —no fix listed
- —no fix listed
- —no fix listed
- —upgrade to 1.25.2-1 or later
- —upgrade to 1.24.8 or later
Is CVE-2025-47912 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (6)
- from 0, < 1.24.8, >= 1.25.0, < 1.25.2
- from 0
- from 0
- from 0
- from 0, < 1.25.2-1
- from 0, < 1.24.8, >= 1.25.0, < 1.25.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |