{"affected":[{"product":"pipelines","source":"CNA: GitHub_M","vendor":"kubeflow","versions":[{"status":"affected","version":">= 2.17.0, < 2.18.0"}]}],"cveId":"CVE-2026-88979","cwes":["CWE-798","CWE-918"],"description":"Kubeflow Pipelines enables users to build and deploy portable, scalable machine learning workflows. From 2.17.0 until 2.18.0, the TensorBoard proxy token introduced by the incomplete remediation for CVE-2026-54745 uses MINIO_SECRET_KEY as its HMAC secret, whose bundled default is publicly known. In an authorization-disabled deployment using that default, an unauthenticated attacker can forge a token containing a chosen viewerName and namespace; the proxy constructs the destination from the viewerName plus the -service suffix, the namespace, and the configured cluster domain, then reads responses on port 80 under the /tensorboard/<viewer>/ path. Resource-name validation and path-traversal rejection remain enforced, authorization-enabled deployments still check access to the selected namespace, and unrestricted metadata access, writes, or service disruption are not established. This issue is fixed in version 2.18.0.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":5.8,"severity":"medium","source":"CNA: GitHub_M","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N","version":"3.1"}],"modifiedAt":1793916878071,"publishedAt":1793916878071,"references":[{"source":"CNA: GitHub_M","tags":["x_refsource_CONFIRM"],"url":"https://github.com/kubeflow/pipelines/security/advisories/GHSA-j429-j7xw-8j9h"},{"source":"CNA: GitHub_M","tags":["x_refsource_MISC"],"url":"https://github.com/kubeflow/pipelines/pull/14346"},{"source":"CNA: GitHub_M","tags":["x_refsource_MISC"],"url":"https://github.com/kubeflow/pipelines/commit/c8effaed62476a8d8c99d3a6cfdd404a04ef99d8"},{"source":"CNA: GitHub_M","tags":["x_refsource_MISC"],"url":"https://github.com/kubeflow/pipelines/releases/tag/2.18.0"}],"remediation":[],"revision":"21e5b83c312bdb909b0314809521fde809ba48581f28d270a175d77b39b80ec5","sources":[{"modifiedAt":1793916878071,"name":"CNA: GitHub_M","retrievedAt":1793920177918,"url":"https://www.cve.org/CVERecord?id=CVE-2026-88979"}],"ssvc":null,"status":"published","title":"Kubeflow Pipelines: Unauthenticated SSRF vulnerability in Kubeflow Pipelines TensorBoard proxy","updatedAt":1793920177918}