CVE-2026-68772

Summary

ZenML 0.94.6 contains a remote code execution vulnerability in the CloudpickleMaterializer component that allows attackers with write access to a shared artifact store to execute arbitrary code by planting a malicious pickle file. Attackers can replace a stored artifact.pkl file with a crafted cloudpickle payload containing a malicious reduce method, which executes arbitrary system commands when any user or pipeline materializes the artifact through the unsanitized cloudpickle.load() call in cloudpickle_materializer.py.

Affected Software

Weaknesses

• CWE-502: Deserialization of Untrusted Data

References

• https://github.com/zenml-io/zenml/pull/5103
• https://github.com/zenml-io/zenml
• https://github.com/zenml-io/zenml/commit/bbf8496d049a7e23800bc31b87b10b4fefbebe18
• https://www.vulncheck.com/advisories/zenml-remote-code-execution-via-cloudpicklematerializer

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