VulnerabilityAnalyzed
CVE-2025-47912
The Parse function permits values other than IPv6 addresses to be included in square brackets within the host component of a URL.
MEDIUM 5.3EPSS 0.44%
Does this matter?
Lower severity and a low EPSS score (0.44%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- EPSS
- 0.44% probability · 37th percentile
- CISA KEV
- Not listed
- Affected
- golang/go
- Source
- security@golang.org
References
- https://go.dev/cl/709857Patch
- https://go.dev/issue/75678Issue Tracking
- https://groups.google.com/g/golang-announce/c/4Emdl2iQ_bIMailing List, Release Notes
- https://pkg.go.dev/vuln/GO-2025-4010Vendor Advisory
- http://www.openwall.com/lists/oss-security/2025/10/08/1Mailing List, Release Notes
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.