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.
Metrics
CVSS 3.1 3.7/10
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| — | — | < 1.6.1 |
| Red Hat | Builds for Red Hat OpenShift | — |
| Red Hat | Builds for Red Hat OpenShift | — |
| Red Hat | Builds for Red Hat OpenShift | — |
| Red Hat | Builds for Red Hat OpenShift | — |
| Red Hat | Builds for Red Hat OpenShift | — |
| Red Hat | Builds for Red Hat OpenShift | — |
| Red Hat | Custom Metric Autoscaler operator for Red Hat Openshift | — |
| Red Hat | Custom Metric Autoscaler operator for Red Hat Openshift | — |
| Red Hat | Custom Metric Autoscaler operator for Red Hat Openshift | — |
| Red Hat | Custom Metric Autoscaler operator for Red Hat Openshift | — |
| Red Hat | Custom Metric Autoscaler operator for Red Hat Openshift | — |
| Red Hat | Multicluster Global Hub | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | OpenShift Serverless | — |
| Red Hat | OpenShift Serverless | — |
| Red Hat | OpenShift Serverless | — |
| Red Hat | OpenShift Serverless | — |
| Red Hat | OpenShift Service Mesh 3 | — |
| Red Hat | OpenShift Service Mesh 3 | — |
| Red Hat | OpenShift Service Mesh 3 | — |
| Red Hat | OpenShift Service Mesh 3 | — |
| Red Hat | OpenShift Service Mesh 3 | — |
| Red Hat | OpenShift Service Mesh 3 | — |
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://news.ycombinator.com/item?id=45669593
- https://www.botanica.software/blog/cryptographic-issues-in-cloudflares-circl-fourq-implementation
Timeline
- Published
- Aug 6, 2025
- Last modified
- Nov 6, 2026
- NVD status
- Deferred