Vulnerability in Kubeflow Pipelines
CVE-2026-118761
Kubeflow Pipelines enables users to build and deploy portable, scalable machine learning workflows. Prior to 2.18.0, the API server decompressed uploaded pipeline archives without adequately bounding expanded data while locating or reading the pipeline file. A small ZIP or gzip-compressed tar archive can consume disproportionately large memory and exhaust API-server resources. Multipart pipeline and pipeline-version upload processing performs decompression before namespace authorization, so a reachable caller does not need a successful pipeline-create authorization decision. URL-import handlers authorize before fetching and decompressing a remote archive. The amount of expansion required to interrupt service depends on deployment resource limits and concurrent activity, and no specific archive is guaranteed to crash every deployment. This issue is fixed in version 2.18.0.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Kubeflow Pipelines — versions < 2.18.0
Weakness classification (CWE)
References
- github.com/kubeflow/pipelines/security/advisories/GHSA-8fmv-6rg5-5924
- github.com/kubeflow/pipelines/pull/14171
- github.com/kubeflow/pipelines/pull/14186
- github.com/kubeflow/pipelines/commit/1121d9a081fdf9e2107c39abb2cd8947727c6953
- github.com/kubeflow/pipelines/commit/ba9ae72cc860e3afbea232185e4132fc2896cac5
- github.com/kubeflow/pipelines/releases/tag/2.18.0
Frequently asked questions
- What is CVE-2026-118761?
- CVE-2026-118761 is a high-severity vulnerability in Kubeflow Pipelines, classified under Improper Handling of Highly Compressed Data (Data Amplification). CVSS score: 7.5/10. Published 2026-10-29.
- How severe is CVE-2026-118761?
- High severity. CVSS v3 base score is 7.5 out of 10.