VDB
RHSA-2026%3A1026
RHSA-2026%3A1026
PUBLISHED
CVSS 7.5 HIGH
A flaw was found in urllib3 Python library that could lead to a Denial of Service condition. A remote, malicious server can exploit this flaw by responding to a client request with an HTTP message that uses an excessive number of chained compression algorithms. This unlimited decompression chain causes the client system to consume a virtually unbounded amount of CPU resources and memory. The high resource usage leads to service disruption, making the application unresponsive.
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | registry.redhat.io/rhoai/odh-feast-operator-rhel9@sha256:496472cf4116e92c8d6dc78db6c13c3a0eebb539beda4d2fb0dd1e0f7ed24082_ppc64le as a component of Red Hat OpenShift AI 3.2 | registry.redhat.io/rhoai/odh-feast-operator-rhel9@sha256:496472cf4116e92c8d6dc78db6c13c3a0eebb539beda4d2fb0dd1e0f7ed24082_ppc64le, registry.redhat.io/rhoai/odh-feast-operator-rhel9@sha256:496472cf4116e92c8d6dc78db6c13c3a0eebb539beda4d2fb0dd1e0f7ed24082_ppc64le, registry.redhat.io/rhoai/odh-feast-operator-rhel9@sha256:496472cf4116e92c8d6dc78db6c13c3a0eebb539beda4d2fb0dd1e0f7ed24082_ppc64le |
| Red Hat | registry.redhat.io/rhoai/odh-trustyai-garak-lls-provider-dsp-rhel9@sha256:745b4f641cb9852b23b807fac1757f903862a6040fd5eb4dfab21d41c397cd17_amd64 as a component of Red Hat OpenShift AI 3.2 | *, *, registry.redhat.io/rhoai/odh-trustyai-garak-lls-provider-dsp-rhel9@sha256:745b4f641cb9852b23b807fac1757f903862a6040fd5eb4dfab21d41c397cd17_amd64 |
| Red Hat | registry.redhat.io/rhoai/odh-vllm-gaudi-rhel9@sha256:9607396415ec82d2d3357a7de292cdefb50adc42edde07c8f488d08f07e2f886_amd64 as a component of Red Hat OpenShift AI 3.2 | registry.redhat.io/rhoai/odh-vllm-gaudi-rhel9@sha256:9607396415ec82d2d3357a7de292cdefb50adc42edde07c8f488d08f07e2f886_amd64, *, registry.redhat.io/rhoai/odh-vllm-gaudi-rhel9@sha256:9607396415ec82d2d3357a7de292cdefb50adc42edde07c8f488d08f07e2f886_amd64 |
| Red Hat | registry.redhat.io/rhoai/odh-training-cuda128-torch28-py312-rhel9@sha256:c165af56dc272b84a5179270e98a6490a31a2346eb22fc754a396d537bd0a489_amd64 as a component of Red Hat OpenShift AI 3.2 | registry.redhat.io/rhoai/odh-training-cuda128-torch28-py312-rhel9@sha256:c165af56dc272b84a5179270e98a6490a31a2346eb22fc754a396d537bd0a489_amd64, registry.redhat.io/rhoai/odh-training-cuda128-torch28-py312-rhel9@sha256:c165af56dc272b84a5179270e98a6490a31a2346eb22fc754a396d537bd0a489_amd64, registry.redhat.io/rhoai/odh-training-cuda128-torch28-py312-rhel9@sha256:c165af56dc272b84a5179270e98a6490a31a2346eb22fc754a396d537bd0a489_amd64 |
| Red Hat | registry.redhat.io/rhoai/odh-model-metadata-collection-rhel9@sha256:dece7af4f170f0b0534c0c8df75428e45f1adba8943789930c72e851edb8d3ff_ppc64le as a component of Red Hat OpenShift AI 3.2 | registry.redhat.io/rhoai/odh-model-metadata-collection-rhel9@sha256:dece7af4f170f0b0534c0c8df75428e45f1adba8943789930c72e851edb8d3ff_ppc64le, registry.redhat.io/rhoai/odh-model-metadata-collection-rhel9@sha256:dece7af4f170f0b0534c0c8df75428e45f1adba8943789930c72e851edb8d3ff_ppc64le, registry.redhat.io/rhoai/odh-model-metadata-collection-rhel9@sha256:dece7af4f170f0b0534c0c8df75428e45f1adba8943789930c72e851edb8d3ff_ppc64le |
| Red Hat | registry.redhat.io/rhoai/odh-kserve-storage-initializer-rhel9@sha256:85295e461b675439e4c319ca3f232cabad43db1e12dc29cc971198ae7b569c68_amd64 as a component of Red Hat OpenShift AI 3.2 | registry.redhat.io/rhoai/odh-kserve-storage-initializer-rhel9@sha256:85295e461b675439e4c319ca3f232cabad43db1e12dc29cc971198ae7b569c68_amd64, registry.redhat.io/rhoai/odh-kserve-storage-initializer-rhel9@sha256:85295e461b675439e4c319ca3f232cabad43db1e12dc29cc971198ae7b569c68_amd64, registry.redhat.io/rhoai/odh-kserve-storage-initializer-rhel9@sha256:85295e461b675439e4c319ca3f232cabad43db1e12dc29cc971198ae7b569c68_amd64 |
| Red Hat | registry.redhat.io/rhoai/odh-ta-lmes-job-rhel9@sha256:0710e2b7f51510c5197ac1faf2cc19e47c047e6831965b9f87ad73cc660d0355_s390x as a component of Red Hat OpenShift AI 3.2 | *, *, * |
| Red Hat | registry.redhat.io/rhoai/odh-llama-stack-k8s-operator-rhel9@sha256:197805ee2f179691e1d8bb06f35f3a4c99d4fbef8010af437a009fd1c4910337_amd64 as a component of Red Hat OpenShift AI 3.2 | registry.redhat.io/rhoai/odh-llama-stack-k8s-operator-rhel9@sha256:197805ee2f179691e1d8bb06f35f3a4c99d4fbef8010af437a009fd1c4910337_amd64, *, * |
| Red Hat | registry.redhat.io/rhoai/odh-guardrails-detector-huggingface-runtime-rhel9@sha256:6c9270cde9276f65b80ee35b9d6be199cd98cc835c0ecc7c63ae55706152f6e6_arm64 as a component of Red Hat OpenShift AI 3.2 | registry.redhat.io/rhoai/odh-guardrails-detector-huggingface-runtime-rhel9@sha256:6c9270cde9276f65b80ee35b9d6be199cd98cc835c0ecc7c63ae55706152f6e6_arm64, registry.redhat.io/rhoai/odh-guardrails-detector-huggingface-runtime-rhel9@sha256:6c9270cde9276f65b80ee35b9d6be199cd98cc835c0ecc7c63ae55706152f6e6_arm64, registry.redhat.io/rhoai/odh-guardrails-detector-huggingface-runtime-rhel9@sha256:6c9270cde9276f65b80ee35b9d6be199cd98cc835c0ecc7c63ae55706152f6e6_arm64 |
| Red Hat | registry.redhat.io/rhoai/odh-trustyai-service-operator-rhel9@sha256:1dc7cadc8cdb6cdd20ef4b06a7afe4d3e3f6a1052e225c814583e8bbfc6dd02e_ppc64le as a component of Red Hat OpenShift AI 3.2 | *, *, registry.redhat.io/rhoai/odh-trustyai-service-operator-rhel9@sha256:1dc7cadc8cdb6cdd20ef4b06a7afe4d3e3f6a1052e225c814583e8bbfc6dd02e_ppc64le |
| Red Hat | registry.redhat.io/rhoai/odh-ta-lmes-driver-rhel9@sha256:5993c2d168325bc31c13ad174fe62706b79c9d6a1eafa99dda666c5232a130ea_s390x as a component of Red Hat OpenShift AI 3.2 | *, *, * |
| Red Hat | registry.redhat.io/rhoai/odh-kube-auth-proxy-rhel9@sha256:8297154a9573d78eb48efd3b4e5903fcab3e4266ec8bc99cde6fa3d6b5da03ea_amd64 as a component of Red Hat OpenShift AI 3.2 | *, *, registry.redhat.io/rhoai/odh-kube-auth-proxy-rhel9@sha256:8297154a9573d78eb48efd3b4e5903fcab3e4266ec8bc99cde6fa3d6b5da03ea_amd64 |
| Red Hat | registry.redhat.io/rhoai/odh-kuberay-operator-controller-rhel9@sha256:e34a2353c5f87e7bf6b175ea77efd50fefde3d494998c7be706b3cdd94abaef2_arm64 as a component of Red Hat OpenShift AI 3.2 | *, registry.redhat.io/rhoai/odh-kuberay-operator-controller-rhel9@sha256:e34a2353c5f87e7bf6b175ea77efd50fefde3d494998c7be706b3cdd94abaef2_arm64, * |
| Red Hat | registry.redhat.io/rhoai/odh-pipeline-runtime-minimal-cpu-py312-rhel9@sha256:a764cd35505149f18ab79fd0f9b062eeee1584c240fd2f201adb3a8b50a59ffa_ppc64le as a component of Red Hat OpenShift AI 3.2 | registry.redhat.io/rhoai/odh-pipeline-runtime-minimal-cpu-py312-rhel9@sha256:a764cd35505149f18ab79fd0f9b062eeee1584c240fd2f201adb3a8b50a59ffa_ppc64le, registry.redhat.io/rhoai/odh-pipeline-runtime-minimal-cpu-py312-rhel9@sha256:a764cd35505149f18ab79fd0f9b062eeee1584c240fd2f201adb3a8b50a59ffa_ppc64le, * |
| Red Hat | registry.redhat.io/rhoai/odh-model-metadata-collection-rhel9@sha256:cbd59318c5c0e35796f918fdbd526013226ad70840ebf5b1a2466b8c36039a72_amd64 as a component of Red Hat OpenShift AI 3.2 | *, registry.redhat.io/rhoai/odh-model-metadata-collection-rhel9@sha256:cbd59318c5c0e35796f918fdbd526013226ad70840ebf5b1a2466b8c36039a72_amd64, registry.redhat.io/rhoai/odh-model-metadata-collection-rhel9@sha256:cbd59318c5c0e35796f918fdbd526013226ad70840ebf5b1a2466b8c36039a72_amd64 |
| Red Hat | registry.redhat.io/rhoai/odh-workbench-codeserver-datascience-cpu-py312-rhel9@sha256:c6bfb16bea6895ae56ef37f544c9cf4be069e62fb9d7db067ef97e2be1f45cb4_arm64 as a component of Red Hat OpenShift AI 3.2 | registry.redhat.io/rhoai/odh-workbench-codeserver-datascience-cpu-py312-rhel9@sha256:c6bfb16bea6895ae56ef37f544c9cf4be069e62fb9d7db067ef97e2be1f45cb4_arm64, *, * |
| Red Hat | registry.redhat.io/rhoai/odh-kf-notebook-controller-rhel9@sha256:3206d42bf847cbddb8627a70c7fbc92199e00ba29840b977ed11f94bc7418110_ppc64le as a component of Red Hat OpenShift AI 3.2 | registry.redhat.io/rhoai/odh-kf-notebook-controller-rhel9@sha256:3206d42bf847cbddb8627a70c7fbc92199e00ba29840b977ed11f94bc7418110_ppc64le, registry.redhat.io/rhoai/odh-kf-notebook-controller-rhel9@sha256:3206d42bf847cbddb8627a70c7fbc92199e00ba29840b977ed11f94bc7418110_ppc64le, * |
| Red Hat | registry.redhat.io/rhoai/odh-ml-pipelines-scheduledworkflow-v2-rhel9@sha256:68b6d2d5c0e88c4cf19989f7a578c684ef49aadd3bc632585c5a46363066124c_arm64 as a component of Red Hat OpenShift AI 3.2 | registry.redhat.io/rhoai/odh-ml-pipelines-scheduledworkflow-v2-rhel9@sha256:68b6d2d5c0e88c4cf19989f7a578c684ef49aadd3bc632585c5a46363066124c_arm64, registry.redhat.io/rhoai/odh-ml-pipelines-scheduledworkflow-v2-rhel9@sha256:68b6d2d5c0e88c4cf19989f7a578c684ef49aadd3bc632585c5a46363066124c_arm64, registry.redhat.io/rhoai/odh-ml-pipelines-scheduledworkflow-v2-rhel9@sha256:68b6d2d5c0e88c4cf19989f7a578c684ef49aadd3bc632585c5a46363066124c_arm64 |
| Red Hat | registry.redhat.io/rhoai/odh-mlmd-grpc-server-rhel9@sha256:eac84bad5a404f9fe912267c88bfe689304fb375260f1680c588fc0815aa5e36_ppc64le as a component of Red Hat OpenShift AI 3.2 | registry.redhat.io/rhoai/odh-mlmd-grpc-server-rhel9@sha256:eac84bad5a404f9fe912267c88bfe689304fb375260f1680c588fc0815aa5e36_ppc64le, registry.redhat.io/rhoai/odh-mlmd-grpc-server-rhel9@sha256:eac84bad5a404f9fe912267c88bfe689304fb375260f1680c588fc0815aa5e36_ppc64le, * |
| Red Hat | registry.redhat.io/rhoai/odh-ml-pipelines-driver-rhel9@sha256:3ea4e846dee8732f8ebf7db3bfe97f083289a6834829ba23746cd2bd04adffb7_arm64 as a component of Red Hat OpenShift AI 3.2 | registry.redhat.io/rhoai/odh-ml-pipelines-driver-rhel9@sha256:3ea4e846dee8732f8ebf7db3bfe97f083289a6834829ba23746cd2bd04adffb7_arm64, registry.redhat.io/rhoai/odh-ml-pipelines-driver-rhel9@sha256:3ea4e846dee8732f8ebf7db3bfe97f083289a6834829ba23746cd2bd04adffb7_arm64, registry.redhat.io/rhoai/odh-ml-pipelines-driver-rhel9@sha256:3ea4e846dee8732f8ebf7db3bfe97f083289a6834829ba23746cd2bd04adffb7_arm64 |
…and 425 more
Timeline
- Jan 22, 2026 CVE Published
- Apr 24, 2026 Distribution Patch
- Apr 24, 2026 Distribution Patch
- Apr 24, 2026 Security Advisory
- Apr 24, 2026 Security Advisory
- Jul 18, 2026 CVE Updated
References
- https://access.redhat.com/errata/RHSA-2026:1026 advisory
- https://access.redhat.com/security/cve/CVE-2025-66418 advisory
- https://access.redhat.com/security/updates/classification/ advisory
- https://docs.redhat.com/en/documentation/red_hat_openshift_ai/ advisory
- https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_1026.json advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2419455 issue
- https://www.cve.org/CVERecord?id=CVE-2025-66418 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2025-66418 advisory
- https://github.com/urllib3/urllib3/commit/24d7b67eac89f94e11003424bcf0d8f7b72222a8 advisory
- https://github.com/urllib3/urllib3/security/advisories/GHSA-gm62-xv2j-4w53 advisory