CVE-2025-47912
published 2025-10-29CVE-2025-47912: 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…
PriorityP429medium5.3CVSS 3.1
AVNACLPRNUINSUCLINAN
EPSS
0.44%
35.4th percentile
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.
Affected
24 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | golang-1.15 | < golang-1.24 1.24.8-1 (forky) | golang-1.24 1.24.8-1 (forky) |
| debian | golang-1.19 | < golang-1.24 1.24.8-1 (forky) | golang-1.24 1.24.8-1 (forky) |
| debian | golang-1.24 | < golang-1.24 1.24.8-1 (forky) | golang-1.24 1.24.8-1 (forky) |
| debian | golang-1.25 | < golang-1.24 1.24.8-1 (forky) | golang-1.24 1.24.8-1 (forky) |
| go_standard_library | net_url | < 1.24.8 | 1.24.8 |
| go_standard_library | net_url | >= 1.25.0 < 1.25.2 | 1.25.2 |
| golang | go | < 1.24.8 | 1.24.8 |
| golang | go | >= 1.25.0 < 1.25.2 | 1.25.2 |
| msrc | azl3_gcc_13.2.0-7_on_azure_linux_3.0 | — | — |
| msrc | azl3_golang_1.23.12-1_on_azure_linux_3.0 | — | — |
| msrc | azl3_golang_1.25.3-1_on_azure_linux_3.0 | — | — |
| msrc | azl3_golang_1.25.5-1_on_azure_linux_3.0 | — | — |
| msrc | azl3_golang_1.25.6-1_on_azure_linux_3.0 | — | — |
| msrc | azl3_python-tensorboard_2.16.2-6_on_azure_linux_3.0 | — | — |
| msrc | azl3_tensorflow_2.16.1-9_on_azure_linux_3.0 | — | — |
| msrc | cbl2_gcc_11.2.0-8_on_cbl_mariner_2.0 | — | — |
| msrc | cbl2_golang_1.18.8-10_on_cbl_mariner_2.0 | — | — |
| msrc | cbl2_golang_1.22.7-5_on_cbl_mariner_2.0 | — | — |
| msrc | cbl2_msft-golang_1.24.11-1_on_cbl_mariner_2.0 | — | — |
| msrc | cbl2_msft-golang_1.24.12-1_on_cbl_mariner_2.0 | — | — |
| msrc | cbl2_msft-golang_1.24.8-1_on_cbl_mariner_2.0 | — | — |
| msrc | cbl2_msft-golang_1.24.9-1_on_cbl_mariner_2.0 | — | — |
| msrc | cbl2_python-tensorboard_2.11.0-3_on_cbl_mariner_2.0 | — | — |
| msrc | cbl2_tensorflow_2.11.1-2_on_cbl_mariner_2.0 | — | — |
CVSS provenance
nvdv3.15.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
osv5.3MEDIUM
vendor_msrc7.7HIGH
vendor_debian5.3MEDIUM
vendor_redhat5.3MEDIUM
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Red Hat
net/url: Insufficient validation of bracketed IPv6 hostnames in net/url
vendor_redhat·2025-10-29·CVSS 5.3
CVE-2025-47912 [MEDIUM] CWE-1286 net/url: Insufficient validation of bracketed IPv6 hostnames in net/url
net/url: Insufficient validation of bracketed IPv6 hostnames in net/url
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.
Package: rhai/assisted-installer-agent-rhel9 (Assisted Installer for Red Hat OpenShift Container Platform 2) - Fix deferred
Package: rhai/assisted-installer-controller-rhel9 (Assisted Installer for Red Hat OpenShift Container Platform 2) - Fix deferred
Package: rhai/assisted-installer-rhel9 (Assisted Installer for Red Hat OpenShift Container Plat
Microsoft
Insufficient validation of bracketed IPv6 hostnames in net/url
vendor_msrc·2025-10-14·CVSS 7.7
CVE-2025-47912 [MEDIUM] Insufficient validation of bracketed IPv6 hostnames in net/url
Insufficient validation of bracketed IPv6 hostnames in net/url
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
Go: Go
Customer Action Required: Yes
Debian
CVE-2025-47912: golang-1.15 - The Parse function permits values other than IPv6 addresses to be included in sq...
vendor_debian·2025·CVSS 5.3
CVE-2025-47912 [MEDIUM] CVE-2025-47912: golang-1.15 - The Parse function permits values other than IPv6 addresses to be included in sq...
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.
Scope: local
bullseye: open
GHSA
GHSA-447v-2qg4-h8hc: The Parse function permits values other than IPv6 addresses to be included in square brackets within the host component of a URL
ghsa_unreviewed·2025-10-30
CVE-2025-47912 [MEDIUM] GHSA-447v-2qg4-h8hc: The Parse function permits values other than IPv6 addresses to be included in square brackets within the host component of a URL
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.
OSV
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
osv·2025-10-29·CVSS 5.3
CVE-2025-47912 [MEDIUM] 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
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.
OSV
Insufficient validation of bracketed IPv6 hostnames in net/url
osv·2025-10-29
CVE-2025-47912 Insufficient validation of bracketed IPv6 hostnames in net/url
Insufficient validation of bracketed IPv6 hostnames in net/url
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.
No detection rules found.
No public exploits indexed.
2025-10-29
Published