Home/CVE/The Parse function permits values other than IPv6 addresses to be included in square brackets within the host component
CVE

CVE-2025-47912

The Parse function permits values other than IPv6 addresses to be included in square brackets within the host component

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.

MEDIUM · CVSS 5.3 EPSS 0.00026
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  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
▤

Affected Products & Versions

2
golang go< 1.24.8
golang go>= 1.25.0 and < 1.25.2
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Go stdlib fixed in 1.24.8, 1.25.2
▣

Scoring & Timeline

5.3
MEDIUM · CVSS v3.1 · security@golang.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD29 Oct 2025 · 11:16 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

23
rhsaRHSA-2026:7385Moderate
rhsaRHSA-2026:7291Moderate
suse-csafopenSUSE-SU-2026:20301-1
suse-csafopenSUSE-SU-2026:20308-1
suse-csafSUSE-SU-2026:20623-1
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://go.dev/cl/709857Patch
https://go.dev/issue/75678Issue Tracking
https://groups.google.com/g/golang-announce/c/4Emdl2iQ_bIMailing ListRelease Notes
https://pkg.go.dev/vuln/GO-2025-4010Vendor Advisory
http://www.openwall.com/lists/oss-security/2025/10/08/1Mailing ListRelease Notes
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