Go net/url Host Validation Flaw in Parse (v<1.25.8, <1.26.1)
CVE-2026-25679 Published on March 6, 2026

Incorrect parsing of IPv6 host literals in net/url
url.Parse insufficiently validated the host/authority component and accepted some invalid URLs.

NVD

Vulnerability Analysis

CVE-2026-25679 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
NONE
Integrity Impact:
NONE
Availability Impact:
HIGH

Weakness Type

Improper Validation of Syntactic Correctness of Input

The product receives input that is expected to be well-formed - i.e., to comply with a certain syntax - but it does not validate or incorrectly validates that the input complies with the syntax.


Products Associated with CVE-2026-25679

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Affected Versions

Go standard library net/url: Red Hat Ansible Automation Platform 2.6 for RHEL 10: Red Hat Enterprise Linux Server (v. 7 ELS): Red Hat Ansible Automation Platform 2.5 for RHEL 8: Red Hat OpenShift Container Platform 4.12: Red Hat OpenShift Container Platform 4.13: Red Hat OpenShift Container Platform 4.16: Red Hat OpenShift Container Platform 4.18: Red Hat Satellite 6.16 for RHEL 8: Red Hat Ansible Automation Platform 2.5 for RHEL 9: Red Hat Ansible Automation Platform 2.6 for RHEL 9: Red Hat Cryostat 4 on RHEL 9: Red Hat OpenStack Platform 17.1: Red Hat Satellite 6.16 for RHEL 9: Red Hat Enterprise Linux AppStream EUS (v. 10.0): Red Hat Enterprise Linux AppStream (v. 10): Red Hat Enterprise Linux AppStream (v. 8): Red Hat Enterprise Linux AppStream AUS (v. 8.2): Red Hat Enterprise Linux AppStream AUS (v.8.4): Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4): Red Hat Enterprise Linux AppStream AUS (v.8.6): Red Hat Enterprise Linux AppStream E4S (v.8.6): Red Hat Enterprise Linux AppStream TUS (v.8.6): Red Hat Enterprise Linux AppStream E4S (v.8.8): Red Hat Enterprise Linux AppStream TUS (v.8.8): Red Hat Enterprise Linux AppStream E4S (v.9.0): Red Hat Enterprise Linux AppStream E4S (v.9.2): Red Hat Enterprise Linux AppStream E4S (v.9.4): Red Hat Enterprise Linux AppStream EUS (v.9.4): Red Hat Enterprise Linux AppStream EUS (v.9.6): Red Hat Enterprise Linux AppStream (v. 9): Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0): Red Hat Enterprise Linux CodeReady Linux Builder (v. 10): Red Hat CodeReady Linux Builder EUS (v.9.4): Red Hat CodeReady Linux Builder EUS (v.9.6): Red Hat Enterprise Linux CodeReady Linux Builder (v. 9): Red Hat Custom Metric Autoscaler 2.19: Red Hat DevWorkspace Operator 0.4: Logging Subsystem for Red Hat OpenShift 6.0: Logging Subsystem for Red Hat OpenShift 6.2: Logging Subsystem for Red Hat OpenShift 6.4: Red Hat Multicluster Global Hub 1.3.4: Red Hat Multicluster Global Hub 1.4.5: Red Hat Multicluster Global Hub 1.5.4: Red Hat Multicluster Global Hub 1.6.2: Red Hat Network Observability (NETOBSERV) 1.11.2: Red Hat OpenShift API for Data Protection 1.4: Red Hat OpenShift API for Data Protection 1.5: Red Hat OpenShift Compliance Operator 1: Red Hat OpenShift File Integrity Operator - FIO 1: Red Hat Advanced Cluster Management for Kubernetes 2.14: Red Hat Advanced Cluster Management for Kubernetes 2.15: Red Hat Advanced Cluster Security for Kubernetes 4.10: Red Hat Advanced Cluster Security for Kubernetes 4.8: Red Hat Advanced Cluster Security for Kubernetes 4.9: Red Hat Ansible Automation Platform 2.6: Red Hat Developer Hub 1.8: Red Hat Developer Hub 1.9: Red Hat Enterprise Linux AI 3.3: Red Hat Hardened Images: Red Hat Lightspeed (formerly Insights) for Runtimes 1: Red Hat OpenShift AI 2.25: Red Hat OpenShift Builds 1.6.5: Red Hat OpenShift Builds 1.7.3: Red Hat OpenShift Container Platform 4.14: Red Hat OpenShift Container Platform 4.15: Red Hat OpenShift Container Platform 4.17: Red Hat OpenShift Container Platform 4.19: Red Hat OpenShift Container Platform 4.20: Red Hat OpenShift Dev Spaces 3.27: Red Hat OpenShift Service Mesh 2.6: Red Hat OpenShift Service Mesh 3.0: Red Hat OpenShift Service Mesh 3.1: Red Hat OpenShift Service Mesh 3.2: Red Hat OpenShift Service Mesh 3.3: Red Hat OpenShift distributed tracing 3.9.3: Red Hat OpenStack 1.5: Red Hat OpenStack Services on OpenShift 18: Red Hat Quay 3.12: Red Hat Quay 3.14: Red Hat Quay 3.15: Red Hat Quay 3.16: Red Hat Quay 3.1: Red Hat Quay 3.9: Red Hat Satellite 6.18: Red Hat Trusted Artifact Signer 1.3: Red Hat Update Infrastructure 5: Red Hat Web Terminal 1.11: Red Hat Web Terminal 1.12: Red Hat Web Terminal 1.13: Red Hat Web Terminal 1.14: Red Hat Web Terminal 1.15: mirror registry for Red Hat OpenShift 2.0: Assisted Installer for Red Hat OpenShift Container Platform 2: cert-manager Operator for Red Hat OpenShift: Red Hat Confidential Compute Attestation: Red Hat Deployment Validation Operator: External Secrets Operator for Red Hat OpenShift: Red Hat ExternalDNS Operator: Red Hat Fence Agents Remediation Operator: Red Hat Gatekeeper 3: Logging Subsystem for Red Hat OpenShift: Red Hat Logical Volume Manager Storage: Red Hat Machine Deletion Remediation Operator: Red Hat Migration Toolkit for Applications 8: Red Hat Migration Toolkit for Containers: mirror registry for Red Hat OpenShift: Red Hat Multicluster Engine for Kubernetes: Red Hat OpenShift Developer Tools and Services: Red Hat OpenShift Lightspeed: Red Hat OpenShift Pipelines: Red Hat OpenShift Serverless: Red Hat OpenShift Service Mesh 2: Red Hat 3scale API Management Platform 2: Red Hat Certification Program for Red Hat Enterprise Linux 9: Red Hat Connectivity Link 1: Red Hat Edge Manager 1: Red Hat Enterprise Linux 10: Red Hat Enterprise Linux 7: Red Hat Enterprise Linux 8: Red Hat Enterprise Linux 9: Red Hat OpenShift Cluster Manager CLI: Red Hat OpenShift Container Platform 4: Red Hat Openshift Data Foundation 4: Red Hat OpenShift GitOps: Red Hat OpenShift on AWS: Red Hat OpenShift Virtualization 4: Red Hat OpenStack Platform 16.2: Red Hat OpenStack Platform 18.0: Red Hat Quay 3: Red Hat Satellite 6: Red Hat Service Interconnect 1: Red Hat Service Interconnect 2: Red Hat Security Profiles Operator: Red Hat streams for Apache Kafka 3: Red Hat Zero Trust Workload Identity Manager: Red Hat Zero Trust Workload Identity Manager - Tech Preview: Red Hat Node HealthCheck Operator: Power monitoring for Red Hat OpenShift: Red Hat AMQ Clients: Red Hat Ansible Automation Platform 2: Red Hat build of Apache Camel - HawtIO 4: Red Hat OpenShift AI (RHOAI): Red Hat OpenShift for Windows Containers:

Exploit Probability

EPSS
0.52%
Percentile
40.00%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.