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Vulnerability record · CVE-2026-68772 · published 7 August 2026

CVE-2026-68772: Deserialization of untrusted data vulnerability

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.

8.5 CVSS 4.0 High EPSS 0.76% · top 46.8% CWE-502 · Deserialization of untrusted data Awaiting Analysis
8.5CVSS 4.0 base score
0.76%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
16 Sep 2026Last modified by NVD

Description

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

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

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Source: NIST National Vulnerability Database (record CVE-2026-68772), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.