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      "product_ids" : [ "Red Hat Container Native Virtualization 4.19:registry.redhat.io/container-native-virtualization/aaq-controller-rhel9@sha256:484643af88d45773372fab81ed3b46d1bc12b754ca2044b84dfbd21bbf16ab1f_amd64", "Red Hat Container Native Virtualization 4.19:registry.redhat.io/container-native-virtualization/aaq-controller-rhel9@sha256:4a72cbf3828e5bae55b71753191c09216359a6ebcfbb7dddbdbb9e147d9817d6_arm64", "Red Hat Container Native Virtualization 4.19:registry.redhat.io/container-native-virtualization/aaq-controller-rhel9@sha256:fcdfeb04a046d3c710ae74730121dd3ad34305bb4ec8d0cca64d960d8843084d_s390x", "Red Hat Container Native Virtualization 4.19:registry.redhat.io/container-native-virtualization/aaq-operator-rhel9@sha256:27115a677a2ec51a9deaf1bb2eb82e28d01a22adf9ecd848f2d8ac24428cd3eb_amd64", "Red Hat Container Native Virtualization 4.19:registry.redhat.io/container-native-virtualization/aaq-operator-rhel9@sha256:b472c07b81fb19ded65c8b3e7ff55ce02a16277d3e1ffd09fb3c53acd358bf97_s390x", "Red Hat Container Native Virtualization 4.19:registry.redhat.io/container-native-virtualization/aaq-operator-rhel9@sha256:b8d9020e840fbf32c9c12e9fa38778d8bfdb5f9f8b849112758f0d2cf08df00f_arm64" ]
    } ],
    "ids" : [ {
      "system_name" : "Red Hat Bugzilla ID",
      "text" : "2449833"
    } ],
    "notes" : [ {
      "category" : "description",
      "text" : "A flaw was found in gRPC-Go, the Go language implementation of gRPC. This vulnerability, an authorization bypass, is caused by improper input validation of the HTTP/2 `:path` pseudo-header. A remote attacker can exploit this by sending raw HTTP/2 frames with a malformed `:path` that omits the mandatory leading slash. This allows the attacker to bypass defined security policies, potentially leading to unauthorized access to services or information disclosure.",
      "title" : "Vulnerability description"
    }, {
      "category" : "summary",
      "text" : "google.golang.org/grpc/grpc-go: google.golang.org/grpc/authz: gRPC-Go: Authorization bypass due to improper HTTP/2 path validation",
      "title" : "Vulnerability summary"
    }, {
      "category" : "general",
      "text" : "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.",
      "title" : "CVSS score applicability"
    } ],
    "product_status" : {
      "fixed" : [ "Red Hat Container Native Virtualization 4.19:registry.redhat.io/container-native-virtualization/aaq-server-rhel9@sha256:a9bb34648ec6323171a58328e12532dc67ed341fe19620ccae63c208a8ff8f9b_arm64", "Red Hat Container Native Virtualization 4.19:registry.redhat.io/container-native-virtualization/aaq-server-rhel9@sha256:c0f08cb14f325a0c771c854fce3b30cb8ce94a7e64cb0fb82fab0ea7eb50988f_s390x", "Red Hat Container Native Virtualization 4.19:registry.redhat.io/container-native-virtualization/aaq-server-rhel9@sha256:e07a0ec5489c0b9c7f13dc5b3edb572369d0761cda9f673c30cadd2bf4e1cac9_amd64" ],
      "known_not_affected" : [ "Red Hat Container Native Virtualization 4.19:registry.redhat.io/container-native-virtualization/aaq-controller-rhel9@sha256:484643af88d45773372fab81ed3b46d1bc12b754ca2044b84dfbd21bbf16ab1f_amd64", "Red Hat Container Native Virtualization 4.19:registry.redhat.io/container-native-virtualization/aaq-controller-rhel9@sha256:4a72cbf3828e5bae55b71753191c09216359a6ebcfbb7dddbdbb9e147d9817d6_arm64", "Red Hat Container Native Virtualization 4.19:registry.redhat.io/container-native-virtualization/aaq-controller-rhel9@sha256:fcdfeb04a046d3c710ae74730121dd3ad34305bb4ec8d0cca64d960d8843084d_s390x", "Red Hat Container Native Virtualization 4.19:registry.redhat.io/container-native-virtualization/aaq-operator-rhel9@sha256:27115a677a2ec51a9deaf1bb2eb82e28d01a22adf9ecd848f2d8ac24428cd3eb_amd64", "Red Hat Container Native Virtualization 4.19:registry.redhat.io/container-native-virtualization/aaq-operator-rhel9@sha256:b472c07b81fb19ded65c8b3e7ff55ce02a16277d3e1ffd09fb3c53acd358bf97_s390x", "Red Hat Container Native Virtualization 4.19:registry.redhat.io/container-native-virtualization/aaq-operator-rhel9@sha256:b8d9020e840fbf32c9c12e9fa38778d8bfdb5f9f8b849112758f0d2cf08df00f_arm64" ]
    },
    "references" : [ {
      "category" : "self",
      "summary" : "Canonical URL",
      "url" : "https://access.redhat.com/security/cve/CVE-2026-33186"
    }, {
      "category" : "external",
      "summary" : "RHBZ#2449833",
      "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2449833"
    }, {
      "category" : "external",
      "summary" : "https://www.cve.org/CVERecord?id=CVE-2026-33186",
      "url" : "https://www.cve.org/CVERecord?id=CVE-2026-33186"
    }, {
      "category" : "external",
      "summary" : "https://nvd.nist.gov/vuln/detail/CVE-2026-33186",
      "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-33186"
    }, {
      "category" : "external",
      "summary" : "https://github.com/grpc/grpc-go/security/advisories/GHSA-p77j-4mvh-x3m3",
      "url" : "https://github.com/grpc/grpc-go/security/advisories/GHSA-p77j-4mvh-x3m3"
    } ],
    "release_date" : "2026-03-20T22:23:32.147000+00:00",
    "remediations" : [ {
      "category" : "vendor_fix",
      "date" : "2026-08-11T17:21:05+00:00",
      "details" : "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
      "product_ids" : [ "Red Hat Container Native Virtualization 4.19:registry.redhat.io/container-native-virtualization/aaq-server-rhel9@sha256:a9bb34648ec6323171a58328e12532dc67ed341fe19620ccae63c208a8ff8f9b_arm64", "Red Hat Container Native Virtualization 4.19:registry.redhat.io/container-native-virtualization/aaq-server-rhel9@sha256:c0f08cb14f325a0c771c854fce3b30cb8ce94a7e64cb0fb82fab0ea7eb50988f_s390x", "Red Hat Container Native Virtualization 4.19:registry.redhat.io/container-native-virtualization/aaq-server-rhel9@sha256:e07a0ec5489c0b9c7f13dc5b3edb572369d0761cda9f673c30cadd2bf4e1cac9_amd64" ],
      "restart_required" : {
        "category" : "none"
      },
      "url" : "https://access.redhat.com/errata/RHSA-2026:53773"
    }, {
      "category" : "workaround",
      "details" : "To mitigate this issue, implement infrastructure-level normalization to ensure all incoming HTTP/2 `:path` headers are properly formatted with a leading slash before reaching the gRPC-Go server. This can be achieved by configuring a reverse proxy or API gateway to validate and normalize the `:path` header. Ensure that any such intermediary is properly configured and restarted to apply the changes, which may temporarily impact service availability.",
      "product_ids" : [ "Red Hat Container Native Virtualization 4.19:registry.redhat.io/container-native-virtualization/aaq-controller-rhel9@sha256:484643af88d45773372fab81ed3b46d1bc12b754ca2044b84dfbd21bbf16ab1f_amd64", "Red Hat Container Native Virtualization 4.19:registry.redhat.io/container-native-virtualization/aaq-controller-rhel9@sha256:4a72cbf3828e5bae55b71753191c09216359a6ebcfbb7dddbdbb9e147d9817d6_arm64", "Red Hat Container Native Virtualization 4.19:registry.redhat.io/container-native-virtualization/aaq-controller-rhel9@sha256:fcdfeb04a046d3c710ae74730121dd3ad34305bb4ec8d0cca64d960d8843084d_s390x", "Red Hat Container Native Virtualization 4.19:registry.redhat.io/container-native-virtualization/aaq-operator-rhel9@sha256:27115a677a2ec51a9deaf1bb2eb82e28d01a22adf9ecd848f2d8ac24428cd3eb_amd64", "Red Hat Container Native Virtualization 4.19:registry.redhat.io/container-native-virtualization/aaq-operator-rhel9@sha256:b472c07b81fb19ded65c8b3e7ff55ce02a16277d3e1ffd09fb3c53acd358bf97_s390x", "Red Hat Container Native Virtualization 4.19:registry.redhat.io/container-native-virtualization/aaq-operator-rhel9@sha256:b8d9020e840fbf32c9c12e9fa38778d8bfdb5f9f8b849112758f0d2cf08df00f_arm64", "Red Hat Container Native Virtualization 4.19:registry.redhat.io/container-native-virtualization/aaq-server-rhel9@sha256:a9bb34648ec6323171a58328e12532dc67ed341fe19620ccae63c208a8ff8f9b_arm64", "Red Hat Container Native Virtualization 4.19:registry.redhat.io/container-native-virtualization/aaq-server-rhel9@sha256:c0f08cb14f325a0c771c854fce3b30cb8ce94a7e64cb0fb82fab0ea7eb50988f_s390x", "Red Hat Container Native Virtualization 4.19:registry.redhat.io/container-native-virtualization/aaq-server-rhel9@sha256:e07a0ec5489c0b9c7f13dc5b3edb572369d0761cda9f673c30cadd2bf4e1cac9_amd64" ]
    } ],
    "scores" : [ {
      "cvss_v3" : {
        "attackComplexity" : "LOW",
        "attackVector" : "NETWORK",
        "availabilityImpact" : "NONE",
        "baseScore" : 9.1,
        "baseSeverity" : "CRITICAL",
        "confidentialityImpact" : "HIGH",
        "integrityImpact" : "HIGH",
        "privilegesRequired" : "NONE",
        "scope" : "UNCHANGED",
        "userInteraction" : "NONE",
        "vectorString" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
        "version" : "3.1"
      },
      "products" : [ "Red Hat Container Native Virtualization 4.19:registry.redhat.io/container-native-virtualization/aaq-controller-rhel9@sha256:484643af88d45773372fab81ed3b46d1bc12b754ca2044b84dfbd21bbf16ab1f_amd64", "Red Hat Container Native Virtualization 4.19:registry.redhat.io/container-native-virtualization/aaq-controller-rhel9@sha256:4a72cbf3828e5bae55b71753191c09216359a6ebcfbb7dddbdbb9e147d9817d6_arm64", "Red Hat Container Native Virtualization 4.19:registry.redhat.io/container-native-virtualization/aaq-controller-rhel9@sha256:fcdfeb04a046d3c710ae74730121dd3ad34305bb4ec8d0cca64d960d8843084d_s390x", "Red Hat Container Native Virtualization 4.19:registry.redhat.io/container-native-virtualization/aaq-operator-rhel9@sha256:27115a677a2ec51a9deaf1bb2eb82e28d01a22adf9ecd848f2d8ac24428cd3eb_amd64", "Red Hat Container Native Virtualization 4.19:registry.redhat.io/container-native-virtualization/aaq-operator-rhel9@sha256:b472c07b81fb19ded65c8b3e7ff55ce02a16277d3e1ffd09fb3c53acd358bf97_s390x", "Red Hat Container Native Virtualization 4.19:registry.redhat.io/container-native-virtualization/aaq-operator-rhel9@sha256:b8d9020e840fbf32c9c12e9fa38778d8bfdb5f9f8b849112758f0d2cf08df00f_arm64", "Red Hat Container Native Virtualization 4.19:registry.redhat.io/container-native-virtualization/aaq-server-rhel9@sha256:a9bb34648ec6323171a58328e12532dc67ed341fe19620ccae63c208a8ff8f9b_arm64", "Red Hat Container Native Virtualization 4.19:registry.redhat.io/container-native-virtualization/aaq-server-rhel9@sha256:c0f08cb14f325a0c771c854fce3b30cb8ce94a7e64cb0fb82fab0ea7eb50988f_s390x", "Red Hat Container Native Virtualization 4.19:registry.redhat.io/container-native-virtualization/aaq-server-rhel9@sha256:e07a0ec5489c0b9c7f13dc5b3edb572369d0761cda9f673c30cadd2bf4e1cac9_amd64" ]
    } ],
    "threats" : [ {
      "category" : "impact",
      "details" : "Important"
    } ],
    "title" : "google.golang.org/grpc/grpc-go: google.golang.org/grpc/authz: gRPC-Go: Authorization bypass due to improper HTTP/2 path validation"
  } ]
}