Disclosure summary
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.
Source-reported weakness categories
NVD-CWE-noinfo
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
NIST National Vulnerability Database · NVD-CVE-2025-47912
Open original source · Updated Oct 08, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
| Vendor | Product / association | Version / bounds |
|---|---|---|
| golang | go | * {"versionStartIncluding":"1.25.0","versionEndExcluding":"1.25.2"} |
Microsoft Security Updates (CVRF) · 2025-Oct
Open original source · Updated Sep 16, 2026
Insufficient validation of bracketed IPv6 hostnames in net/url
Maximum of vendor-reported product scores; products and fixed builds are associations, not a universal affected-version statement.
Microsoft maximum product score: 7.7
| Vendor | Product / association | Version / bounds |
|---|---|---|
| Microsoft update guide | cbl2 golang 1.18.8-10 on CBL Mariner 2.0 | (MSRC status code 3) |
| Microsoft update guide | cbl2 golang 1.22.7-5 on CBL Mariner 2.0 | (MSRC status code 3) |
| Microsoft update guide | cbl2 msft-golang 1.24.8-1 on CBL Mariner 2.0 | (MSRC status code 3) |
| Microsoft update guide | azl3 golang 1.23.12-1 on Azure Linux 3.0 | (MSRC status code 3) |
| Microsoft update guide | cbl2 msft-golang 1.24.11-1 on CBL Mariner 2.0 | (MSRC status code 3) |
| Microsoft update guide | azl3 golang 1.25.5-1 on Azure Linux 3.0 | (MSRC status code 3) |
| Microsoft update guide | azl3 golang 1.25.3-1 on Azure Linux 3.0 | (MSRC status code 3) |
| Microsoft update guide | cbl2 msft-golang 1.24.9-1 on CBL Mariner 2.0 | (MSRC status code 3) |
| Microsoft update guide | azl3 golang 1.27.0-1 on Azure Linux 3.0 | (MSRC status code 3) |
Vendor remediation references
- Vendor guidance · product IDs 21778-17084
- Vendor guidance · product IDs 21778-17084
Original records & references
- NIST NVD record
- CVE Program record
- go.dev — Patch
- go.dev — Issue Tracking
- groups.google.com — Mailing List, Release Notes
- pkg.go.dev — Vendor Advisory
PUBLISHED 2025-10-29T19:16:18-04:00
MODIFIED 2026-10-08T06:10:00-04:00
INGESTED 2026-10-08T12:35:14-04:00