CVE-2026-118761 Kubeflow Pipelines: Pipeline archive upload allows decompression bomb to exhaust server memory
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-118761?
CVE-2026-118761 is a high-severity vulnerability in kubeflow pipelines, published on 29 Oct 2026.
Official description
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.
Weakness: CWE-409
Which versions are affected by CVE-2026-118761?
How do I fix CVE-2026-118761?
No fix has been published for CVE-2026-118761 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-118761 being exploited?
There is no known exploitation of CVE-2026-118761 in the wild and no public exploit code.
Sources
Also known as GHSA-8fmv-6rg5-5924.