High 7.5Published Oct 29, 2026

CVE-2026-118761Kubeflow Pipelines: Pipeline archive upload allows decompression bomb to exhaust server memory

Updated under an hour ago (Oct 30, 2026, 3:23 AM ET)

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No exploitation reported and no EPSS estimate yet.

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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.

CVSS: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-409
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Received
Record last updated: Oct 29, 2026
First seen by InfoSec Signals: Oct 29, 2026

Affected products

Affected products

kubeflow pipelines kubeflow:pipelines (from the name)	before 2.18.0	CNA record

References

References

https://github.com/kubeflow/pipelines/security/advisories/GHSA-8fmv-6rg5-5924	x-refsource-confirm
https://github.com/kubeflow/pipelines/pull/14171	x-refsource-misc
https://github.com/kubeflow/pipelines/pull/14186	x-refsource-misc
https://github.com/kubeflow/pipelines/commit/1121d9a081fdf9e2107c39abb2cd8947727c6953	x-refsource-misc
https://github.com/kubeflow/pipelines/commit/ba9ae72cc860e3afbea232185e4132fc2896cac5	x-refsource-misc
https://github.com/kubeflow/pipelines/releases/tag/2.18.0	x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.