CVE-2025-47912

CVE-2025-47912

Medium · published October 30, 2025

CVSS v3.1
5.3
EPSS
0%
Percentile
39.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00468 · 39.5th percentile
Published
2025-10-30T03:16Z
Affected products (2)
ProductVersionsFixed in
golang/go< 1.24.81.24.8
golang/go≥ 1.25.0, < 1.25.21.25.2
References (5)
https://go.dev/cl/709857 · [email protected]https://go.dev/issue/75678 · [email protected]https://groups.google.com/g/golang-announce/c/4Emdl2iQ_bI · [email protected]https://pkg.go.dev/vuln/GO-2025-4010 · [email protected]http://www.openwall.com/lists/oss-security/2025/10/08/1 · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 29 OCT 22:10Z
    Insufficient validation of bracketed IPv6 hostnames in net/url
    cvelistv5