{"id":"EUVD-2026-117831","enisaUuid":"c4ae04b1-a21a-3598-97d7-81784a0844b9","description":"Kubeflow Pipelines enables users to build and deploy portable, scalable machine learning workflows. Prior to 2.18.0, the legacy V1/raw-Argo execution cache mutating webhook and cache-server storage path hash selected template fields without the Kubernetes namespace, use the key alone for lookups and duplicate checks, and trust the mutable pipelines.kubeflow.org/execution_cache_key annotation when publishing outputs. In multi-user deployments where tenant namespaces share the cache service, a tenant with workload-submission privileges can read another namespace\u0027s cached outputs or seed matching outputs that are substituted into a later step. Standard KFP V2 component pods bypass this cache, matching requires the selected template fields and staleness policy, and arbitrary code execution or service availability impact is not established. This issue is fixed in version 2.18.0.","datePublished":"Nov 5, 2026, 10:25:58 PM","dateUpdated":"Nov 10, 2026, 4:44:31 AM","baseScore":5.4,"baseScoreVersion":"3.1","baseScoreVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","references":"https://github.com/kubeflow/pipelines/security/advisories/GHSA-2xwh-426q-42c5\nhttps://github.com/kubeflow/pipelines/pull/14359\nhttps://github.com/kubeflow/pipelines/commit/620d0cc89ae0d042a484a003f8ffe6e9a55d347e\nhttps://github.com/kubeflow/pipelines/releases/tag/2.18.0\n","aliases":"CVE-2026-88982\nGHSA-2xwh-426q-42c5\n","assigner":"GitHub_M","epss":0.15,"enisaIdProduct":[{"id":"cb1ec5c2-aa19-3cba-b1a3-f2895f22e7b9","product":{"name":"Pipelines","vendor":{"name":"Red Hat"}},"product_version":"\u003c 2.18.0"}],"enisaIdVendor":[{"id":"0fe957bc-3ca9-3173-b0e9-c14f8e101ecd","vendor":{"name":"kubeflow"}}],"enisaIdVulnerability":[{"id":"f5f70e8e-5d0f-3cfb-96d4-15924e605c5d","vulnerability":{"id":"CVE-2026-88982","description":"Kubeflow Pipelines enables users to build and deploy portable, scalable machine learning workflows. Prior to 2.18.0, the legacy V1/raw-Argo execution cache mutating webhook and cache-server storage path hash selected template fields without the Kubernetes namespace, use the key alone for lookups and duplicate checks, and trust the mutable pipelines.kubeflow.org/execution_cache_key annotation when publishing outputs. In multi-user deployments where tenant namespaces share the cache service, a tenant with workload-submission privileges can read another namespace\u0027s cached outputs or seed matching outputs that are substituted into a later step. Standard KFP V2 component pods bypass this cache, matching requires the selected template fields and staleness policy, and arbitrary code execution or service availability impact is not established. This issue is fixed in version 2.18.0.","datePublished":"Nov 5, 2026, 10:25:58 PM","dateUpdated":"Nov 10, 2026, 4:44:31 AM","status":"PUBLISHED","baseScore":5.4,"baseScoreVersion":"3.1","baseScoreVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","references":"https://github.com/kubeflow/pipelines/security/advisories/GHSA-2xwh-426q-42c5\nhttps://github.com/kubeflow/pipelines/pull/14359\nhttps://github.com/kubeflow/pipelines/commit/620d0cc89ae0d042a484a003f8ffe6e9a55d347e\nhttps://github.com/kubeflow/pipelines/releases/tag/2.18.0\n","enisa_id":"EUVD-2026-117831\n","assigner":"GitHub_M","epss":0.15,"dataProcessed":"Nov 13, 2026, 7:18:28 AM","vulnerabilityProduct":[{"id":"aa9b728d-bb42-3d22-ba15-6c6c9a9eac8a","product":{"name":"Pipelines","vendor":{"name":"Red Hat"}},"product_version":"\u003c 2.18.0"}],"vulnerabilityVendor":[{"id":"31d8bade-3497-34c9-ace8-7149c7774ee6","vendor":{"name":"kubeflow"}}]}},{"id":"f6eb606e-c2e2-3021-87b7-a53092b698c2","vulnerability":{"id":"GHSA-2xwh-426q-42c5","description":"Kubeflow Pipelines: Cross-tenant execution-cache poisoning / output substitution via a namespace-blind cache key in the cache webhook (multi-user)","datePublished":"Nov 9, 2026, 10:43:33 PM","dateUpdated":"Nov 9, 2026, 10:43:33 PM","baseScore":0.0,"references":"https://github.com/kubeflow/pipelines/security/advisories/GHSA-2xwh-426q-42c5\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-88982\nhttps://github.com/kubeflow/pipelines/pull/14359\nhttps://github.com/kubeflow/pipelines/commit/620d0cc89ae0d042a484a003f8ffe6e9a55d347e\nhttps://github.com/kubeflow/pipelines\nhttps://github.com/kubeflow/pipelines/releases/tag/2.18.0\n","enisa_id":"EUVD-2026-117831\n","aliases":"CVE-2026-88982\nGHSA-2xwh-426q-42c5\n","epss":0.0,"dataProcessed":"Nov 13, 2026, 7:06:32 AM","vulnerabilityProduct":[],"vulnerabilityVendor":[]}}],"enisaIdAdvisory":[]}