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  4. CVE 2025 8556 githubcomcloudflarecircl circl fourq missing and
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Back to active CVEs
Low ยท CVSS 3.7CVE-2025-8556

Github.com/cloudflare/circl: circl-fourq: missing and wrong validation can lead to incorrect resultsCVE-2025-8556

Answer in brief

CVE-2025-8556 records a Low severity (CVSS 3.7) vulnerability in Github.com/cloudflare/circl: circl-fourq: missing and wrong validation can lead to incorrect results. The current sources do not mark it as known exploited. The current feed maps Red Hat/advanced-cluster-security/rhacs-central-db-rhel8 (generic), Red Hat/advanced-cluster-security/rhacs-main-rhel8 (generic), Red Hat/advanced-cluster-security/rhacs-rhel8-operator (generic), Red Hat/advanced-cluster-security/rhacs-roxctl-rhel8 (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 6, 2025Updated Oct 27, 2026Source checked Oct 27, 2026First seen by HOL Oct 27, 2026Material review Oct 27, 2026
Upstream Advisory

Key facts

Risk
Low ยท CVSS 3.7
Exploitation
Not marked as known exploited
Affected software
114 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 3.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Red Hat/advanced-cluster-security/rhacs-central-db-rhel8 (generic), Red Hat/advanced-cluster-security/rhacs-main-rhel8 (generic), Red Hat/advanced-cluster-security/rhacs-rhel8-operator (generic), Red Hat/advanced-cluster-security/rhacs-roxctl-rhel8 (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Red Hat/advanced-cluster-security/rhacs-central-db-rhel8generic*Not reported
Red Hat/advanced-cluster-security/rhacs-main-rhel8generic*Not reported
Red Hat/advanced-cluster-security/rhacs-rhel8-operatorgeneric*Not reported
Red Hat/advanced-cluster-security/rhacs-roxctl-rhel8generic*Not reported
Red Hat/advanced-cluster-security/rhacs-scanner-db-rhel8generic*Not reported
Red Hat/advanced-cluster-security/rhacs-scanner-db-slim-rhel8generic*Not reported
Red Hat/advanced-cluster-security/rhacs-scanner-rhel8generic*Not reported
Red Hat/advanced-cluster-security/rhacs-scanner-slim-rhel8generic*Not reported
Red Hat/advanced-cluster-security/rhacs-scanner-v4-db-rhel8generic*Not reported
Red Hat/advanced-cluster-security/rhacs-scanner-v4-rhel8generic*Not reported
circlgeneric>=0 <1.6.11.6.1
Red Hat/container-native-virtualization/cluster-network-addons-operator-rhel9generic*Not reported
Red Hat/custom-metrics-autoscaler/custom-metrics-autoscaler-adapter-rhel9generic*Not reported
Red Hat/custom-metrics-autoscaler/custom-metrics-autoscaler-admission-webhooks-rhel9generic*Not reported
Red Hat/custom-metrics-autoscaler/custom-metrics-autoscaler-operator-bundlegeneric*Not reported
Red Hat/custom-metrics-autoscaler/custom-metrics-autoscaler-rhel9generic*Not reported
Red Hat/custom-metrics-autoscaler/custom-metrics-autoscaler-rhel9-operatorgeneric*Not reported
Red Hat/devworkspace/devworkspace-operator-bundlegeneric*Not reported
Red Hat/devworkspace/devworkspace-project-clone-rhel9generic*Not reported
Red Hat/devworkspace/devworkspace-rhel9-operatorgeneric*Not reported
Red Hat/flightctlgeneric*Not reported
Red Hat/multicluster-globalhub/multicluster-globalhub-grafana-rhel9generic*Not reported
Red Hat/openshift4/o-cloud-manager-operator-bundlegeneric*Not reported
Red Hat/openshift4/o-cloud-manager-rhel9-operatorgeneric*Not reported
Red Hat/openshift4/ose-aws-cluster-api-controllers-rhel8generic*Not reported
Red Hat/openshift4/ose-aws-cluster-api-controllers-rhel9generic*Not reported
Red Hat/openshift4/ose-cluster-api-rhel9generic*Not reported
Red Hat/openshift4/ose-cluster-kube-cluster-api-rhel8-operatorgeneric*Not reported
Red Hat/openshift4/ose-cluster-kube-cluster-api-rhel9-operatorgeneric*Not reported
Red Hat/openshift4/ose-consolegeneric*Not reported
Red Hat/openshift4/ose-console-rhel9generic*Not reported
Red Hat/openshift4/ose-olm-rukpak-rhel8generic*Not reported
Red Hat/openshift4/ose-olm-rukpak-rhel9generic*Not reported
Red Hat/openshift4-wincw/windows-machine-config-operator-bundlegeneric*Not reported
Red Hat/openshift4-wincw/windows-machine-config-rhel9-operatorgeneric*Not reported
Red Hat/openshift-builds/openshift-builds-controller-rhel9generic*Not reported
Red Hat/openshift-builds/openshift-builds-git-cloner-rhel9generic*Not reported
Red Hat/openshift-builds/openshift-builds-image-bundler-rhel9generic*Not reported
Red Hat/openshift-builds/openshift-builds-image-processing-rhel9generic*Not reported
Red Hat/openshift-builds/openshift-builds-waiters-rhel9generic*Not reported
Red Hat/openshift-builds/openshift-builds-webhook-rhel9generic*Not reported
Red Hat/openshift-gitops-1/argocd-rhel8generic*Not reported
Red Hat/openshift-gitops-1/argocd-rhel9generic*Not reported
Red Hat/openshift-gitops-1/argo-rollouts-rhel8generic*Not reported
Red Hat/openshift-gitops-1/gitops-rhel8generic*Not reported
Red Hat/openshift-pipelines/pipelines-chains-controller-rhel8generic*Not reported
Red Hat/openshift-pipelines/pipelines-chains-controller-rhel9generic*Not reported
Red Hat/openshift-pipelines/pipelines-cli-tkn-rhel8generic*Not reported
Red Hat/openshift-pipelines/pipelines-cli-tkn-rhel9generic*Not reported
Red Hat/openshift-pipelines/pipelines-controller-rhel8generic*Not reported
Red Hat/openshift-pipelines/pipelines-controller-rhel9generic*Not reported
Red Hat/openshift-pipelines/pipelines-entrypoint-rhel8generic*Not reported
Red Hat/openshift-pipelines/pipelines-entrypoint-rhel9generic*Not reported
Red Hat/openshift-pipelines/pipelines-events-rhel8generic*Not reported
Red Hat/openshift-pipelines/pipelines-events-rhel9generic*Not reported
Red Hat/openshift-pipelines/pipelines-nop-rhel8generic*Not reported
Red Hat/openshift-pipelines/pipelines-nop-rhel9generic*Not reported
Red Hat/openshift-pipelines/pipelines-operator-bundlegeneric*Not reported
Red Hat/openshift-pipelines/pipelines-operator-proxy-rhel8generic*Not reported
Red Hat/openshift-pipelines/pipelines-operator-proxy-rhel9generic*Not reported
Red Hat/openshift-pipelines/pipelines-operator-webhook-rhel8generic*Not reported
Red Hat/openshift-pipelines/pipelines-operator-webhook-rhel9generic*Not reported
Red Hat/openshift-pipelines/pipelines-resolvers-rhel8generic*Not reported
Red Hat/openshift-pipelines/pipelines-resolvers-rhel9generic*Not reported
Red Hat/openshift-pipelines/pipelines-rhel8-operatorgeneric*Not reported
Red Hat/openshift-pipelines/pipelines-rhel9-operatorgeneric*Not reported
Red Hat/openshift-pipelines/pipelines-sidecarlogresults-rhel8generic*Not reported
Red Hat/openshift-pipelines/pipelines-sidecarlogresults-rhel9generic*Not reported
Red Hat/openshift-pipelines/pipelines-webhook-rhel8generic*Not reported
Red Hat/openshift-pipelines/pipelines-webhook-rhel9generic*Not reported
Red Hat/openshift-pipelines/pipelines-workingdirinit-rhel8generic*Not reported
Red Hat/openshift-pipelines/pipelines-workingdirinit-rhel9generic*Not reported
Red Hat/openshift-serverless-1/kn-client-cli-artifacts-rhel8generic*Not reported
Red Hat/openshift-serverless-1/kn-client-kn-rhel8generic*Not reported
Red Hat/openshift-serverless-1/kn-plugin-event-sender-rhel8generic*Not reported
Red Hat/openshift-serverless-1/kn-plugin-func-func-util-rhel8generic*Not reported
Red Hat/openshift-service-mesh-dev-preview-beta/istio-ztunnel-rhel9generic*Not reported
Red Hat/openshift-service-mesh/istio-cni-rhel9generic*Not reported
Red Hat/openshift-service-mesh/istio-must-gather-rhel9generic*Not reported
Red Hat/openshift-service-mesh/istio-pilot-rhel9generic*Not reported
Red Hat/openshift-service-mesh/istio-proxyv2-rhel9generic*Not reported
Red Hat/openshift-service-mesh/istio-rhel9-operatorgeneric*Not reported
Red Hat/openshift-service-mesh/istio-sail-operator-bundlegeneric*Not reported
Red Hat/rhacm2/acm-flightctl-api-rhel9generic*Not reported
Red Hat/rhacm2/acm-flightctl-periodic-rhel9generic*Not reported
Red Hat/rhacm2/acm-flightctl-worker-rhel9generic*Not reported
Red Hat/rhacm2/acm-grafana-rhel9generic*Not reported
Red Hat/rhacm2/multicluster-operators-subscription-rhel9generic*Not reported
Red Hat/rhacm2/subctl-rhel9generic*Not reported
Red Hat/rhacm2/volsync-rhel9generic*Not reported
Red Hat/rhceph/grafana-rhel9generic*Not reported
Red Hat/rhdh-orchestrator-dev-preview-beta/controller-rhel9-operatorgeneric*Not reported
Red Hat/rhdh-orchestrator-dev-preview-beta/orchestrator-operator-bundlegeneric*Not reported
Red Hat/rhel9/grafanageneric*Not reported
Red Hat/rhelai1/pathservice-rhel9generic*Not reported
Red Hat/rhelai1/ui-rhel9generic*Not reported
Red Hat/rhem/flightctl-api-rhel9generic*Not reported
Red Hat/rhem/flightctl-cli-artifacts-rhel9generic*Not reported
Red Hat/rhem/flightctl-periodic-rhel9generic*Not reported
Red Hat/rhem/flightctl-ui-ocp-rhel9generic*Not reported
Red Hat/rhem/flightctl-ui-rhel9generic*Not reported
Red Hat/rhem/flightctl-worker-rhel9generic*Not reported
Red Hat/rhoai/odh-data-science-pipelines-argo-argoexec-rhel8generic*Not reported
Red Hat/rhoai/odh-data-science-pipelines-argo-workflowcontroller-rhel8generic*Not reported
Red Hat/rhtap-task-runner/rhtap-task-runner-rhel9generic*Not reported
Red Hat/rhtas/client-server-rhel9generic*Not reported
Red Hat/rhtas/cosign-rhel9generic*Not reported
Red Hat/rhtas/createctconfig-rhel9generic*Not reported
Red Hat/rhtas/ctlog-managectroots-rhel9generic*Not reported
Red Hat/rhtas/fulcio-createcerts-rhel9generic*Not reported
Red Hat/rhtas/gitsign-rhel9generic*Not reported
Red Hat/rhtas/trillian-createdb-rhel9generic*Not reported
Red Hat/rhtas/tuf-server-rhel9generic*Not reported
Red Hat/rhtpa/rhtpa-guac-rhel9generic*Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Red Hat/advanced-cluster-security/rhacs-central-db-rhel8, Red Hat/advanced-cluster-security/rhacs-main-rhel8, Red Hat/advanced-cluster-security/rhacs-rhel8-operator.
  2. 2Review the reported fix. Source-reported workaround: 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.

Evidence timeline and material changes

  1. Published upstream

    Aug 6, 2025

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 27, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 27, 2026

Sources and claim methodology

  • Source referenceaccess.redhat.com
  • Source referencebugzilla.redhat.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • Source referencenews.ycombinator.com
  • Source referencebotanica.software
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-1287
Source
CVE List V5
Source checked
Oct 27, 2026
References
7 linked sources
Open source record