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  4. CVE 2026 118761 kubeflow pipelines pipeline archive upload allows
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Back to active CVEs
High · CVSS 7.5CVE-2026-118761

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

Answer in brief

CVE-2026-118761 records a High severity (CVSS 7.5) vulnerability in Kubeflow Pipelines: Pipeline archive upload allows decompression bomb to exhaust server memory. The current sources do not mark it as known exploited. The current feed maps kubeflow/pipelines (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 29, 2026Updated Oct 29, 2026Source checked Oct 29, 2026First seen by HOL Oct 29, 2026Material review Oct 29, 2026
Upstream Advisory

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-409
Source
CVE List V5
Source checked
Oct 29, 2026
References
6 linked sources
Open source record

Key facts

Risk
High · CVSS 7.5
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps kubeflow/pipelines (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
kubeflow/pipelinesgeneric<2.18.02.18.0

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for kubeflow/pipelines.
  2. 2Review the reported fix. Update kubeflow/pipelines to 2.18.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 29, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 29, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 29, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Kubeflow: Unauthenticated path traversal to arbitrary file read on ml-pipeline-ui via the volume artifact sourceSame kubeflow/pipelines package
  • Kubeflow Pipelines: Run log streaming endpoint bypasses namespace authorization, exposing pod execution logs cross-tenantSame kubeflow/pipelines package
  • Kubeflow Pipelines: Missing namespace authorization permits cross-tenant artifact readsSame kubeflow/pipelines package