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    CVE-2026-41187

    Calico's apiserver wraps tier-scoped resources so that every operation runs through AuthorizeTierOperation, but the Delete override on NetworkPolicy, GlobalNetworkPolicy, and their staged variants is not invoked for DeleteCollection requests. A user holding the deletecollection verb or wildcard verbs on tier-scoped policy resources can bulk-delete policies in tiers they otherwise have no rights on, breaking the tier authorization boundary.

    Published:Jul 30, 2026
    Last Modified:Jul 30, 2026
    EPS:Jul 30, 2026
    EPSS Score:
    CVSS Score:6.2

    Affected Products

    Vendor
    Tigera
    Product
    Calico
    Vendor
    Tigera
    Product
    Calico Cloud
    Vendor
    Tigera
    Product
    Calico Enterprise

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2026-6540 (CVSS 7.9) — Calico's Application Layer Policy (disabled by default), which enforces HTTP rules through Dikastes, fails to …
    CVE-2026-41185 (CVSS 6) — When Calico is configured with the Azure IPAM plugin, the Calico CNI binary mutates the incoming CNI configura…
    CVE-2026-6720 (CVSS 7.2) — When calicoctl is invoked with --log-level=info or --log-level=debug, the client prints the full contents of i…
    CVE-2026-41184 (CVSS 6) — In Calico, the install-cni init container logs the rendered CNI configuration to standard output. When the con…
    CVE-2024-33522 (CVSS 6.7) — In vulnerable versions of Calico (v3.27.2 and below), Calico Enterprise (v3.19.0-1, v3.18.1, v3.17.3 and below…
    CVE-2022-28224 (CVSS 5.5) — Clusters using Calico (version 3.22.1 and below), Calico Enterprise (version 3.12.0 and below), may be vulnera…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High