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Highest advisory severityHigh 1 vendor · 1 advisory

CVE-2026-71325

CVE-2026-71325: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.

Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.

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Vendor advisory comparison

Red Hat

1 advisory
  • Advisory severityHigh8.7

    High [CVE-2026-71325] Namespace isolation bypass via TraefikService backendRef

    CVE-2026-71325Source published Source updated

    Traefik is an open-source edge router that makes publishing services a fun and easy experience. Prior to 2.11.54, 3.6.25, and 3.7.10, cross-namespace @kubernetescrd references are not rejected for TraefikService backend references resolved by the service resolver. A tenant confined by RBAC to a single namespace can therefore bind its own router to a TraefikService owned by another namespace and expose or reroute that namespace's backend, defeating the namespace isolation allowCrossNamespace=false is meant to enforce. This issue is fixed in version 2.11.54, 3.6.25, 3.7.10. A flaw was found in Traefik. This flaw allows a tenant, even when restricted by Role-Based Access Control (RBAC) to a single namespace, to bypass namespace isolation. This defeats the intended…

    Affected products in this advisory
    • Red Hat OpenShift Dev Spaces
    Source-reported affected versions
    • < 2.11.54
    • < 3.6.25
    • < 3.7.10
    Source-reported fixed versions
    • 2.11.54
    • 3.6.25
    • 3.7.10
    Mitigation guidance
    • To mitigate this flaw, restrict RBAC permissions to prevent non-administrative users from creating or modifying custom Traefik IngressRoute and TraefikService Custom Resource Definitions (CRDs). Alternatively, segregate sensitive backend workloads into dedicated Traefik ingress controller instances.
    Full advisory and evidenceOpen source bulletin

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