Skip to content
VulniPulse
Sign in
Advisory severityLow3.7Red Hat Linux

Low [CVE-2025-8556] Github.com/cloudflare/circl: circl-fourq: missing and wrong validation can lead to incorrect results

This low-severity Red Hat Linux advisory covers CVE-2025-8556 affecting Builds for Red Hat OpenShift, Custom Metric Autoscaler operator for Red Hat Openshift, Multicluster Global Hub.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2025-8556 Source published Source updated

VulniPulse record published

CVE-2025-8556
Affected products & platforms
Red Hat LinuxUnclassified
Open source advisory

Summary

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.

Red Hat severity: Low — CVSS 3.7 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N). Weakness: CWE-1287.

Affected Red Hat products: Builds for Red Hat OpenShift; Custom Metric Autoscaler operator for Red Hat Openshift; Multicluster Global Hub; OpenShift Pipelines; OpenShift Serverless; OpenShift Service Mesh 3; Red Hat Advanced Cluster Management for Kubernetes 2; Red Hat Advanced Cluster Security 4; Red Hat Ceph Storage 5; Red Hat Ceph Storage 6; Red Hat Ceph Storage 8; Red Hat Developer Hub; Red Hat Edge Manager preview; Red Hat Enterprise Linux AI (RHEL AI); Red Hat OpenShift AI (RHOAI); Red Hat OpenShift Container Platform 4; Red Hat OpenShift Dev Workspaces Operator; Red Hat OpenShift for Windows Containers; Red Hat OpenShift GitOps; Red Hat OpenShift Virtualization 4; Red Hat OpenStack Platform 16.2; Red Hat OpenStack Platform 17.1; Red Hat Trusted Application Pipeline; Red Hat Trusted Artifact Signer; Red Hat Trusted Profile Analyzer.

Red Hat does not currently list a fixing RHSA for this CVE.

Is CVE-2025-8556 exploited?

No exploitation is reported in the sources VulniPulse tracks: CVE-2025-8556 is not in the CISA KEV catalog (checked ) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.

How do I fix CVE-2025-8556?

The advisory VulniPulse tracks names no fixed release. Follow Red Hat's guidance for workarounds and updates.

Confirm against the vendor advisory before you patch.

Affected versions

No affected-version range was extracted from the source record. The vendor advisory is authoritative. Check it before change work.

Official advisory · high-confidence parse· fetched 14 days ago·verify at source

Fixed versions

No fixed release is recorded yet. That does not prove no patch exists. Confirm against the vendor advisory.

Official advisory · high-confidence parse· fetched 14 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Official advisory · high-confidence parse· fetched 14 days ago·verify at source

Get an email when Red Hat publishes the next one.

See Red Hat's last 90 days of advisories first. Then choose one product with live alerts free for life, or a free month of real-time alerts on everything with the severity, the fixed version and the vendor's link (card needed, then US$15/month; we email you before the first charge).

Alert me about Red Hat

More Red Hat Linux advisories

All Red Hat Linux advisories

iPhone and Android apps · New on the App Store

Monitor future Red Hat Linux CVEs from your phone.

Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 34 official vendor sources and 160+ reviewed platform categories.

Download on the App StoreGet CVE alerts on AndroidSee app features

Discussion(0)

No comments yet. Share field notes, upgrade gotchas, or questions — verify against the vendor advisory before acting on community advice.

Sign in to join the discussion.