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kyverno

54 known vulnerabilities.

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  • Critical 9.9

    Kyverno 1.19.1 Privilege Escalation via apiCall Namespace Clamp Bypass

    Kyverno from 1.19.1 before 1.19.2 contains an authorization bypass vulnerability in the apiCall namespace clamp that allows namespace tenants to issue cross-namespace and cluster-scoped API requests by appending malformed percent-escapes to urlPath. Attackers…

  • Critical 9.1

    Kyverno 1.18.0 before 1.19.2 verifyImages Cache Signature Verification Bypass

    Kyverno 1.18.0 before 1.19.2 contains a signature verification bypass in verifyImages because cached verification results are keyed by the image reference string (such as a tag) rather than bound to the verified digest, so cache hits skip signature and attest…

  • Critical 9.9

    Kyverno 1.17.0 before 1.19.2 Cross-Namespace Privilege Escalation via NamespacedMutatingPolicy

    Kyverno from 1.17.0 before 1.19.2 contains a privilege escalation vulnerability that allows namespace-scoped tenants to modify resources in other namespaces through NamespacedMutatingPolicy targetMatchConstraints.expression CEL output lacking namespace checks…

  • Critical 9.9

    Kyverno 1.16.0 before 1.19.2 Path Traversal in Namespaced CEL Policies via resource argument

    Kyverno from 1.16.0 before 1.19.2 fails to validate path segments in the resource argument of resource.get() and resource.post(), allowing namespaced CEL policies to escape their namespace. Tenants who can create a NamespacedValidatingPolicy can insert .. seg…

  • Critical 9.9

    Kyverno 1.19.1 before 1.19.2 Privilege Escalation via Policy apiCall urlPath

    Kyverno from 1.19.1 before 1.19.2 validates a Policy's context.apiCall urlPath after cleaning it but executes the raw path, whose fragment or query the Kubernetes client discards. A namespace-scoped user who can create a Policy can hide ../ segments behind # …

  • Critical 9.9

    Kyverno 1.17.0 before 1.19.2 Privilege Escalation via CleanupPolicy Context Loader

    Kyverno from 1.17.0 before 1.19.2 contains an authorization bypass vulnerability that allows namespace admins to escape namespace confinement because the cleanup controller builds its context loader with a nil policy. Attackers can create a namespaced Cleanup…

  • Critical 9.9

    Kyverno 1.17.0 before 1.19.2 Cross-Namespace Resource Overwrite via NamespacedMutatingPolicy

    Kyverno from 1.17.0 before 1.19.2 contains an authorization bypass vulnerability that allows namespace tenants to overwrite resources in other namespaces via NamespacedMutatingPolicy mutate-existing targetMatchConstraints.expression. Attackers can return a CE…

  • Critical 9.8

    Kyverno before 1.19.2 Privilege Escalation via Generate Rule Permission Check

    Kyverno before 1.19.2 contains a privilege escalation vulnerability that allows namespace admins to create resources beyond their RBAC because generate-rule admission checks verify the controller's permissions, not the author's. Attackers can create a namespa…

  • Critical 9.9

    kyverno before 1.19.1 Privilege Escalation via Policy apiCall urlPath

    kyverno before 1.19.1 fails to properly validate URL-encoded path segments in Policy apiCall urlPath, allowing namespace tenants to bypass the per-namespace clamp and create objects in other namespaces as the admission-controller ServiceAccount. Attackers can…

  • Critical 9.0

    Kyverno before v1.13.0 Policy Bypass via Multiple Exceptions

    Kyverno versions v1.9.0 through v1.12.7 contain a policy exception handling flaw. When a policy in enforce mode is combined with two PolicyExceptions, the less restrictive exception takes precedence, allowing an attacker to bypass the policy by crafting a res…

  • Critical 9.6
    CVE-2026-54523 Public exploit

    Kyverno: NamespacedGeneratingPolicy generator.apply() namespace argument unvalidated -- background controller creates RoleBindings in any namespace including kube-system

    Kyverno is a policy engine designed for cloud native platform engineering teams. From 1.18.0 until 1.18.2, the NamespacedMutatingPolicy CEL compiler exposes the generator library to matchConditions, allowing a namespace-scoped policy to invoke generator.apply…

  • Critical 9.8

    CVE-2026-4789

    Kyverno, versions 1.16.0 and later, are vulnerable to SSRF due to unrestricted CEL HTTP functions.

  • Critical 10.0

    Kyverno Cross-Namespace Privilege Escalation via Policy apiCall

    Kyverno is a policy engine designed for cloud native platform engineering teams. Versions prior to 1.16.3 and 1.15.3 have a critical authorization boundary bypass in namespaced Kyverno Policy apiCall. The resolved `urlPath` is executed using the Kyverno admis…