CVE-2026-75593

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{"bugzilla": {"description": "github.com/moby/buildkit: BuildKit: File escape vulnerability allows unauthorized file modification", "id": "2519913", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2519913"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "status": "draft"}, "cwe": "CWE-22", "details": ["BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner. Prior to 0.31.2, a custom client can produce such an upload request to the BuildKit daemon that files can escape from the BuildKit-controlled state directory. The client needs to have valid permissions to access BuildKit control API to issue builds, eg., bypass authentication, etc. This issue is fixed in version 0.31.2.", "A flaw was found in BuildKit, a toolkit for converting source code to build artifacts. A malicious client with valid permissions to access the BuildKit control API can craft a special upload request. This request allows files to escape from the BuildKit-controlled state directory, potentially leading to unauthorized modification or deletion of files on the system."], "mitigation": {"lang": "en:us", "value": "Restrict access to the BuildKit control API to only trusted users and services. Implement robust authentication and authorization policies for all clients interacting with the BuildKit daemon to prevent unauthorized access and potential file system escapes."}, "name": "CVE-2026-75593", "package_state": [{"cpe": "cpe:/a:redhat:assisted_installer:2", "fix_state": "Not affected", "package_name": "assisted/agent-preinstall-image-builder-rhel9", "product_name": "Assisted Installer for Red Hat OpenShift Container Platform 2"}, {"cpe": "cpe:/a:redhat:assisted_installer:2", "fix_state": "Affected", "package_name": "rhai/assisted-installer-controller-rhel9", "product_name": "Assisted Installer for Red Hat OpenShift Container Platform 2"}, {"cpe": "cpe:/a:redhat:openshift_compliance_operator:1", "fix_state": "Affected", "package_name": "compliance/openshift-compliance-must-gather-rhel8", "product_name": "Compliance Operator"}, {"cpe": "cpe:/a:redhat:confidential_compute_attestation:1", "fix_state": "Affected", "package_name": "build-of-trustee/trustee-must-gather-rhel9", 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"fix_state": "Affected", "package_name": "multicluster-engine/assisted-service-9-rhel9", "product_name": "Multicluster Engine for Kubernetes"}, {"cpe": "cpe:/a:redhat:multicluster_engine", "fix_state": "Affected", "package_name": "multicluster-engine/must-gather-rhel9", "product_name": "Multicluster Engine for Kubernetes"}, {"cpe": "cpe:/a:redhat:workload_availability_nhc:0", "fix_state": "Affected", "package_name": "workload-availability/node-healthcheck-must-gather-rhel8", "product_name": "Node HealthCheck Operator"}, {"cpe": "cpe:/a:redhat:workload_availability_nhc:0", "fix_state": "Affected", "package_name": "workload-availability/node-healthcheck-must-gather-rhel9", "product_name": "Node HealthCheck Operator"}, {"cpe": "cpe:/a:redhat:openshift_api_data_protection:1", "fix_state": "Affected", "package_name": "oadp/oadp-mustgather-rhel9", "product_name": "OpenShift API for Data Protection"}, {"cpe": "cpe:/a:redhat:ocp_tools", "fix_state": "Fix deferred", "package_name": 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"cpe:/a:redhat:openshift_ai", "fix_state": "Affected", "package_name": "rhoai/odh-workbench-jupyter-pytorch-rocm-py312-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}, {"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Affected", "package_name": "rhoai/odh-workbench-jupyter-tensorflow-cuda-py312-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}, {"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Affected", "package_name": "rhoai/odh-workbench-jupyter-tensorflow-rocm-py312-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}, {"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Affected", "package_name": "rhoai/odh-workbench-jupyter-trustyai-cpu-py312-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}, {"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Affected", "package_name": "rhoai/rhai-cli-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "cri-o", "product_name": "Red Hat 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"openshift4/microshift-bootc-rhel9", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift4/network-tools-rhel8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift4/network-tools-rhel9", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift4/numaresources-must-gather-rhel9", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift4/oc-mirror-plugin-rhel9", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift4/ose-agent-installer-api-server-rhel8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": 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"openshift4/ose-cli-artifacts", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift4/ose-cli-artifacts-rhel9", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift4/ose-cli-rhel9", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift4/ose-csi-driver-shared-resource-mustgather-rhel8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift4/ose-csi-driver-shared-resource-mustgather-rhel9", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift4/ose-deployer", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift4/ose-deployer-rhel9", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift4/ose-docker-builder", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift4/ose-docker-builder-rhel9", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift4/ose-local-storage-mustgather-rhel8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift4/ose-local-storage-mustgather-rhel9", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift4/ose-machine-config-rhel9-operator", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift4/ose-machine-os-images-rhel9", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift4/ose-must-gather", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift4/ose-must-gather-rhel9", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift4/ose-ovn-kubernetes", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift4/ose-ovn-kubernetes-rhel9", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift4/ose-sdn-rhel8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift4/ose-secrets-store-csi-mustgather-rhel8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift4/ose-secrets-store-csi-mustgather-rhel9", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift4/ose-tests", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift4/ose-tests-rhel9", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift4/ose-tools-rhel8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift4/ose-tools-rhel9", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift4/ptp-must-gather-rhel8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift4/ptp-must-gather-rhel9", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift-clients", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift-kni/commatrix", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "podman", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift_data_foundation:4", "fix_state": "Affected", "package_name": "odf4/mcg-core-rhel9", "product_name": "Red Hat Openshift Data Foundation 4"}, {"cpe": "cpe:/a:redhat:openshift_data_foundation:4", "fix_state": "Affected", "package_name": "odf4/odf-must-gather-rhel9", "product_name": "Red Hat Openshift Data Foundation 4"}, {"cpe": "cpe:/a:redhat:openshift_devspaces:3", "fix_state": "Affected", "package_name": "devspaces/udi-base-rhel10", "product_name": "Red Hat OpenShift Dev Spaces"}, {"cpe": "cpe:/a:redhat:openshift_devspaces:3", "fix_state": "Affected", "package_name": "devspaces/udi-base-rhel9", "product_name": "Red Hat OpenShift Dev Spaces"}, {"cpe": "cpe:/a:redhat:openshift_devspaces:3", "fix_state": "Affected", "package_name": "devspaces/udi-rhel9", "product_name": "Red Hat OpenShift Dev Spaces"}, {"cpe": "cpe:/a:redhat:openshift_gitops:1", "fix_state": "Fix deferred", "package_name": "openshift-gitops-1/must-gather-rhel8", "product_name": "Red Hat OpenShift GitOps"}, {"cpe": "cpe:/a:redhat:openshift_gitops:1", "fix_state": "Affected", "package_name": "openshift-gitops-1/must-gather-rhel9", "product_name": "Red Hat OpenShift GitOps"}, {"cpe": "cpe:/a:redhat:container_native_virtualization:4", "fix_state": "Affected", "package_name": "container-native-virtualization/cnv-must-gather-rhel8", "product_name": "Red Hat OpenShift Virtualization 4"}, {"cpe": "cpe:/a:redhat:container_native_virtualization:4", "fix_state": "Affected", "package_name": "container-native-virtualization/cnv-must-gather-rhel9", "product_name": "Red Hat OpenShift Virtualization 4"}, {"cpe": "cpe:/a:redhat:container_native_virtualization:4", "fix_state": "Affected", "package_name": "container-native-virtualization/ocp-virt-validation-checkup-rhel9", "product_name": "Red Hat OpenShift Virtualization 4"}, {"cpe": "cpe:/a:redhat:openstack:18.0", "fix_state": "Affected", "package_name": "rhoso-operators/openstack-must-gather-rhel9", "product_name": "Red Hat OpenStack Platform 18.0"}, {"cpe": "cpe:/a:redhat:openstack:18.0", "fix_state": "Affected", "package_name": "rhoso-operators/prometheus-podman-exporter-rhel9", "product_name": "Red Hat OpenStack Platform 18.0"}, {"cpe": "cpe:/a:redhat:quay:3", "fix_state": "Affected", "package_name": "quay/quay-builder-rhel8", "product_name": "Red Hat Quay 3"}, {"cpe": "cpe:/a:redhat:quay:3", "fix_state": "Affected", "package_name": "quay/quay-builder-rhel9", "product_name": "Red Hat Quay 3"}, {"cpe": "cpe:/a:redhat:trusted_artifact_signer:1", "fix_state": "Affected", "package_name": "rhtas/ec-rhel9", "product_name": "Red Hat Trusted Artifact Signer"}, {"cpe": "cpe:/a:redhat:webterminal:1", "fix_state": "Affected", "package_name": "web-terminal/web-terminal-tooling-rhel9", "product_name": "Red Hat Web Terminal"}], "public_date": "2026-08-19T20:06:54Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-75593\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-75593\nhttps://github.com/moby/buildkit/releases/tag/v0.31.2\nhttps://github.com/moby/buildkit/security/advisories/GHSA-g2h8-426c-7976"], "statement": "A flaw in BuildKit allows a client with valid permissions to the BuildKit control API to perform unauthorized file modifications outside the intended build state directory. This issue is limited to authenticated clients, reducing the overall attack surface.", "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,0.31.2)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "buildkit", "source": "cna", "vendor": "moby"}, "product": "buildkit", "vendor": "moby"}], "created": "2026-08-19T23:30:16.803752+00:00", "updated": "2026-08-20T12:00:04.200559+00:00", "vendors": ["moby", "moby$PRODUCT$buildkit"]}