Description
A flaw was found in CIRCL's implementation of the FourQ elliptic curve. This vulnerability allows an attacker to compromise session security via low-order point injection and incorrect point validation during Diffie-Hellman key exchange.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
circl
Default version status: unaffected
0 to < 1.6.1affected
Red Hat Builds for Red Hat OpenShift
Default version status: affected
Red Hat Builds for Red Hat OpenShift
Default version status: affected
Red Hat Builds for Red Hat OpenShift
Default version status: affected
Red Hat Builds for Red Hat OpenShift
Default version status: affected
Red Hat Builds for Red Hat OpenShift
Default version status: affected
Red Hat Builds for Red Hat OpenShift
Default version status: affected
Red Hat Custom Metric Autoscaler operator for Red Hat Openshift
Default version status: affected
Red Hat Custom Metric Autoscaler operator for Red Hat Openshift
Default version status: affected
Red Hat Custom Metric Autoscaler operator for Red Hat Openshift
Default version status: affected
Red Hat Custom Metric Autoscaler operator for Red Hat Openshift
Default version status: affected
Red Hat Custom Metric Autoscaler operator for Red Hat Openshift
Default version status: affected
Red Hat Multicluster Global Hub
Default version status: affected
Red Hat OpenShift Pipelines
Default version status: affected
Red Hat OpenShift Pipelines
Default version status: affected
Red Hat OpenShift Pipelines
Default version status: affected
Red Hat OpenShift Pipelines
Default version status: affected
Red Hat OpenShift Pipelines
Default version status: affected
Red Hat OpenShift Pipelines
Default version status: affected
Red Hat OpenShift Pipelines
Default version status: affected
Red Hat OpenShift Pipelines
Default version status: affected
Red Hat OpenShift Pipelines
Default version status: affected
Red Hat OpenShift Pipelines
Default version status: affected
Red Hat OpenShift Pipelines
Default version status: affected
Red Hat OpenShift Pipelines
Default version status: affected
Red Hat OpenShift Pipelines
Default version status: affected
Red Hat OpenShift Pipelines
Default version status: affected
Red Hat OpenShift Pipelines
Default version status: affected
Red Hat OpenShift Pipelines
Default version status: affected
Red Hat OpenShift Pipelines
Default version status: affected
Red Hat OpenShift Pipelines
Default version status: affected
Red Hat OpenShift Pipelines
Default version status: affected
Red Hat OpenShift Pipelines
Default version status: affected
Red Hat OpenShift Pipelines
Default version status: affected
Red Hat OpenShift Pipelines
Default version status: affected
Red Hat OpenShift Pipelines
Default version status: affected
Red Hat OpenShift Pipelines
Default version status: affected
Red Hat OpenShift Pipelines
Default version status: affected
Red Hat OpenShift Pipelines
Default version status: affected
Red Hat OpenShift Pipelines
Default version status: affected
Red Hat OpenShift Serverless
Default version status: affected
Red Hat OpenShift Serverless
Default version status: affected
Red Hat OpenShift Serverless
Default version status: affected
Red Hat OpenShift Serverless
Default version status: affected
Red Hat OpenShift Service Mesh 3
Default version status: affected
Red Hat OpenShift Service Mesh 3
Default version status: affected
Red Hat OpenShift Service Mesh 3
Default version status: affected
Red Hat OpenShift Service Mesh 3
Default version status: affected
Red Hat OpenShift Service Mesh 3
Default version status: affected
Red Hat OpenShift Service Mesh 3
Default version status: affected
Red Hat OpenShift Service Mesh 3
Default version status: affected
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2
Default version status: affected
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2
Default version status: affected
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2
Default version status: affected
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2
Default version status: affected
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2
Default version status: affected
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2
Default version status: affected
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2
Default version status: affected
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2
Default version status: affected
Red Hat Red Hat Advanced Cluster Security 4
Default version status: affected
Red Hat Red Hat Advanced Cluster Security 4
Default version status: affected
Red Hat Red Hat Advanced Cluster Security 4
Default version status: affected
Red Hat Red Hat Advanced Cluster Security 4
Default version status: affected
Red Hat Red Hat Advanced Cluster Security 4
Default version status: affected
Red Hat Red Hat Advanced Cluster Security 4
Default version status: affected
Red Hat Red Hat Advanced Cluster Security 4
Default version status: affected
Red Hat Red Hat Advanced Cluster Security 4
Default version status: affected
Red Hat Red Hat Advanced Cluster Security 4
Default version status: affected
Red Hat Red Hat Advanced Cluster Security 4
Default version status: affected
Red Hat Red Hat Ceph Storage 5
Default version status: affected
Red Hat Red Hat Ceph Storage 5
Default version status: affected
Red Hat Red Hat Ceph Storage 6
Default version status: affected
Red Hat Red Hat Ceph Storage 6
Default version status: affected
Red Hat Red Hat Ceph Storage 8
Default version status: affected
Red Hat Red Hat Ceph Storage 8
Default version status: affected
Red Hat Red Hat Developer Hub 1
Default version status: affected
Red Hat Red Hat Developer Hub 1
Default version status: affected
Red Hat Red Hat Edge Manager preview
Default version status: affected
Red Hat Red Hat Edge Manager preview
Default version status: affected
Red Hat Red Hat Edge Manager preview
Default version status: affected
Red Hat Red Hat Edge Manager preview
Default version status: affected
Red Hat Red Hat Edge Manager preview
Default version status: affected
Red Hat Red Hat Edge Manager preview
Default version status: affected
Red Hat Red Hat Edge Manager preview
Default version status: affected
Red Hat Red Hat Edge Manager preview
Default version status: affected
Red Hat Red Hat Edge Manager preview
Default version status: affected
Red Hat Red Hat Edge Manager preview
Default version status: affected
Red Hat Red Hat Enterprise Linux 10
Default version status: unaffected
Red Hat Red Hat Enterprise Linux 9
Default version status: unaffected
Red Hat Red Hat Enterprise Linux AI (RHEL AI)
Default version status: unaffected
Red Hat Red Hat Enterprise Linux AI (RHEL AI)
Default version status: unaffected
Red Hat Red Hat Enterprise Linux AI (RHEL AI)
Default version status: unaffected
Red Hat Red Hat Enterprise Linux AI (RHEL AI)
Default version status: unaffected
Red Hat Red Hat Enterprise Linux AI (RHEL AI)
Default version status: unaffected
Red Hat Red Hat Enterprise Linux AI (RHEL AI)
Default version status: unaffected
Red Hat Red Hat Enterprise Linux AI (RHEL AI)
Default version status: unaffected
Red Hat Red Hat Enterprise Linux AI (RHEL AI)
Default version status: unaffected
Red Hat Red Hat Enterprise Linux AI (RHEL AI)
Default version status: affected
Red Hat Red Hat Enterprise Linux AI (RHEL AI)
Default version status: affected
Red Hat Red Hat OpenShift AI (RHOAI)
Default version status: affected
Red Hat Red Hat OpenShift AI (RHOAI)
Default version status: affected
Red Hat Red Hat OpenShift Container Platform 4
Default version status: affected
Red Hat Red Hat OpenShift Container Platform 4
Default version status: affected
Red Hat Red Hat OpenShift Container Platform 4
Default version status: affected
Red Hat Red Hat OpenShift Container Platform 4
Default version status: affected
Red Hat Red Hat OpenShift Container Platform 4
Default version status: affected
Red Hat Red Hat OpenShift Container Platform 4
Default version status: affected
Red Hat Red Hat OpenShift Container Platform 4
Default version status: affected
Red Hat Red Hat OpenShift Container Platform 4
Default version status: affected
Red Hat Red Hat OpenShift Container Platform 4
Default version status: affected
Red Hat Red Hat OpenShift Container Platform 4
Default version status: affected
Red Hat Red Hat OpenShift Container Platform 4
Default version status: affected
Red Hat Red Hat OpenShift Dev Workspaces Operator
Default version status: affected
Red Hat Red Hat OpenShift Dev Workspaces Operator
Default version status: affected
Red Hat Red Hat OpenShift Dev Workspaces Operator
Default version status: affected
Red Hat Red Hat OpenShift for Windows Containers
Default version status: affected
Red Hat Red Hat OpenShift for Windows Containers
Default version status: affected
Red Hat Red Hat OpenShift GitOps
Default version status: affected
Red Hat Red Hat OpenShift GitOps
Default version status: affected
Red Hat Red Hat OpenShift GitOps
Default version status: affected
Red Hat Red Hat OpenShift GitOps
Default version status: affected
Red Hat Red Hat OpenShift Virtualization 4
Default version status: affected
Red Hat Red Hat OpenStack Platform 16.2
Default version status: unknown
Red Hat Red Hat OpenStack Platform 16.2
Default version status: unknown
Red Hat Red Hat OpenStack Platform 16.2
Default version status: unknown
Red Hat Red Hat OpenStack Platform 17.1
Default version status: unknown
Red Hat Red Hat OpenStack Platform 17.1
Default version status: unknown
Red Hat Red Hat OpenStack Platform 17.1
Default version status: unknown
Red Hat Red Hat Trusted Application Pipeline
Default version status: affected
Red Hat Red Hat Trusted Artifact Signer
Default version status: affected
Red Hat Red Hat Trusted Artifact Signer
Default version status: affected
Red Hat Red Hat Trusted Artifact Signer
Default version status: affected
Red Hat Red Hat Trusted Artifact Signer
Default version status: affected
Red Hat Red Hat Trusted Artifact Signer
Default version status: affected
Red Hat Red Hat Trusted Artifact Signer
Default version status: affected
Red Hat Red Hat Trusted Artifact Signer
Default version status: affected
Red Hat Red Hat Trusted Artifact Signer
Default version status: affected
Red Hat Red Hat Trusted Profile Analyzer
Default version status: affected
References
- https://access.redhat.com/security/cve/CVE-2025-8556 ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=2371624 ↗
- https://github.com/cloudflare/circl ↗
- https://github.com/cloudflare/circl/security/advisories/GHSA-2x5j-vhc8-9cwm ↗
- https://github.com/cloudflare/circl/tree/v1.6.1 ↗
- https://www.botanica.software/blog/cryptographic-issues-in-cloudflares-circl-fourq-implementation ↗
- https://news.ycombinator.com/item?id=45669593 ↗