CVE-2026-91135

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{"bugzilla": {"description": "github.com/apache/thrift: Apache Thrift: C++ `THeaderTransport::transform()` heap buffer overflow (write direction)", "id": "2545013", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2545013"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H", "status": "draft"}, "cwe": "CWE-787", "details": ["Heap-based buffer overflow vulnerability in Apache Thrift C++ THeaderTransport.\nWhen an application enables the ZLIB transform for the frames it sends, THeaderTransport::transform() copies the compressed frame into the write buffer without making sure it fits. Data that does not compress, such as content a remote peer supplied, grows under compression, so the copy writes past the end of the heap buffer by an amount that grows with the size of the frame, and for large frames it also reads past the end of the transform buffer.\nThis issue affects Apache Thrift: before 0.25.0.\nUsers are recommended to upgrade to version 0.25.0, which fixes the issue.", "A flaw was found in Apache Thrift. When an application using the C++ transport layer enables compression on outgoing messages, it copies the compressed frame into the write buffer without verifying that the buffer is large enough. A remote attacker can exploit this issue by supplying incompressible data that expands during compression, triggering a heap-based buffer overflow. This vulnerability causes memory corruption, which can lead to a Denial of Service (DoS) via an application crash, data disclosure, or potential arbitrary code execution."], "name": "CVE-2026-91135", "package_state": [{"cpe": "cpe:/a:redhat:ansible_automation_orchestrator:2026.8", "fix_state": "Under investigation", "package_name": "ansible-automation-platform/automation-orchestrator-temporal-rhel9", "product_name": "Ansible Automation Orchestrator 2026"}, {"cpe": "cpe:/a:redhat:cryostat:4", "fix_state": "Under investigation", "package_name": "cryostat/cryostat-storage-rhel9", "product_name": "Cryostat 4"}, {"cpe": "cpe:/a:redhat:logging:6", "fix_state": "Under investigation", "package_name": "openshift-logging/logging-loki-rhel9", "product_name": "Logging Subsystem for Red Hat OpenShift"}, {"cpe": "cpe:/a:redhat:multicluster_globalhub", "fix_state": "Under investigation", "package_name": "multicluster-globalhub/multicluster-globalhub-grafana-rhel9", "product_name": "Multicluster Global Hub"}, {"cpe": "cpe:/a:redhat:acm:2", "fix_state": "Under investigation", "package_name": "rhacm2/acm-grafana-rhel9", "product_name": "Red Hat Advanced Cluster Management for Kubernetes 2"}, {"cpe": "cpe:/a:redhat:ai_inference_server:3", "fix_state": "Under investigation", "package_name": "rhaiis/vllm-cpu-rhel9", "product_name": "Red Hat AI Inference Server"}, {"cpe": "cpe:/a:redhat:ai_inference_server:3", "fix_state": "Under investigation", "package_name": "rhaiis/vllm-tpu-rhel9", "product_name": "Red Hat AI Inference Server"}, {"cpe": "cpe:/a:redhat:ceph_storage:5", "fix_state": "Under investigation", "package_name": "rhceph/snmp-notifier-rhel8", "product_name": "Red Hat Ceph Storage 5"}, {"cpe": "cpe:/a:redhat:ceph_storage:6", "fix_state": "Under investigation", "package_name": "rhceph/rhceph-6-dashboard-rhel9", "product_name": "Red Hat Ceph Storage 6"}, {"cpe": "cpe:/a:redhat:ceph_storage:6", "fix_state": "Under investigation", "package_name": "rhceph/snmp-notifier-rhel9", "product_name": "Red Hat Ceph Storage 6"}, {"cpe": "cpe:/a:redhat:ceph_storage:7", "fix_state": "Under investigation", "package_name": "rhceph/grafana-rhel9", "product_name": "Red Hat Ceph Storage 7"}, {"cpe": "cpe:/a:redhat:ceph_storage:7", "fix_state": "Under investigation", "package_name": "rhceph/snmp-notifier-rhel9", "product_name": "Red Hat Ceph Storage 7"}, {"cpe": "cpe:/a:redhat:ceph_storage:7", "fix_state": "Under investigation", "package_name": "thrift", "product_name": "Red Hat Ceph Storage 7"}, {"cpe": "cpe:/a:redhat:ceph_storage:8", "fix_state": "Under investigation", "package_name": "rhceph/grafana-rhel9", "product_name": "Red Hat Ceph Storage 8"}, {"cpe": "cpe:/a:redhat:ceph_storage:8", "fix_state": "Under investigation", "package_name": "rhceph/snmp-notifier-rhel9", "product_name": "Red Hat Ceph Storage 8"}, {"cpe": "cpe:/a:redhat:ceph_storage:8", "fix_state": "Under investigation", "package_name": "thrift", "product_name": "Red Hat Ceph Storage 8"}, {"cpe": 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"Not affected", "package_name": "jaeger", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "loki3.7", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "opentelemetry-collector", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "opentelemetry-collector-contrib", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "opentelemetry-collector-k8s", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "tempo2.10", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "tempo3.0", "product_name": "Red Hat Hardened Images"}, {"cpe": 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"rhosdt/opentelemetry-collector-rhel9", "product_name": "Red Hat OpenShift distributed tracing 3"}, {"cpe": "cpe:/a:redhat:openshift_distributed_tracing:3", "fix_state": "Under investigation", "package_name": "rhosdt/tempo-jaeger-query-rhel9", "product_name": "Red Hat OpenShift distributed tracing 3"}, {"cpe": "cpe:/a:redhat:openshift_distributed_tracing:3", "fix_state": "Under investigation", "package_name": "rhosdt/tempo-query-rhel9", "product_name": "Red Hat OpenShift distributed tracing 3"}, {"cpe": "cpe:/a:redhat:openshift_distributed_tracing:3", "fix_state": "Under investigation", "package_name": "rhosdt/tempo-rhel9", "product_name": "Red Hat OpenShift distributed tracing 3"}, {"cpe": "cpe:/a:redhat:openstack:18.0", "fix_state": "Affected", "package_name": "rhoso-operators/openstack-operator-bundle", "product_name": "Red Hat OpenStack Platform 18.0"}], "public_date": "2026-10-02T10:28:50Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-91135\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-91135\nhttps://lists.apache.org/thread/33otcgbqd27wf6qq810q56znzbomnhg1\nhttps://lists.apache.org/thread/rbpwlhlxnv2qgyk8cfscp2d2fd3p0ojb"], "statement": "This vulnerability is rated as having a Moderate severity for Red Hat because triggering the flaw requires an application utilizing the Apache Thrift C++ library to explicitly enable ZLIB compression transforms on outbound frames, limiting widespread exploitability in default deployments. Under these specific non-default conditions, processing incompressible data from an untrusted peer can cause memory corruption leading to service instability or a crash. Furthermore, the issue is confined to the C++ transport implementation, meaning Red Hat products and Go-based services that bundle Thrift language bindings other than C++ are not affected.", "threat_severity": "Moderate"}

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