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Highest advisory severityMedium 1 vendor · 1 advisory

CVE-2026-73499

CVE-2026-73499: 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 severityMedium6.5

    Medium [CVE-2026-73499] Information disclosure via Watch API authorization bypass

    CVE-2026-73499Source published Source updated

    etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.5.33, 3.6.14, and 3.7.1, a user granted READ permission on a single exact key can use the Watch gRPC API with clientv3.WithFromKey() to receive watch events for every key lexicographically greater than or equal to the permitted key. In server/etcdserver/api/v3rpc/watch.go, the open-ended RangeEnd sentinel is rewritten before the RBAC permission check in server/auth/range_perm_cache.go function isRangeOpPermitted, causing the request to be treated as an exact-key watch. Range/Get and DeleteRange requests are not affected, and the issue affects only clusters with authentication enabled. This issue is fixed in versions 3.5.33, 3.6.14, and 3.7.1. This allows them to receive watch events for keys…

    Affected products in this advisory
    • Multicluster Global Hub
    • Red Hat Advanced Cluster Management for Kubernetes 2
    • Red Hat OpenShift Container Platform 4
    • Red Hat OpenShift GitOps

    3 more entries in the full advisory.

    Source-reported affected versions
    • < 3.5.33
    • < 3.6.14
    • < 3.7.1
    Source-reported fixed versions
    • 3.5.33
    • 3.6.14
    • 3.7.1
    Mitigation guidance
    • If etcd authentication is not required for the deployment, this vulnerability does not apply. For clusters with authentication enabled, restrict network-level access to the etcd gRPC API to trusted clients only, and audit user permissions to ensure the principle of least privilege.
    Full advisory and evidenceOpen source bulletin

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