Deserialization in Zenml
CVE-2026-68772
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.
Vulnerability class: Insecure Deserialization
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (55.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Zenml — versions 0
Weakness classification (CWE)
References
- Pull Request (issue-tracking)
- Product Repository (product)
- Patch Commit (patch)
- www.vulncheck.com/advisories/zenml-remote-code-execution-via-cloudpicklemateria… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-68772?
- CVE-2026-68772 is a high-severity vulnerability in Zenml, classified under Deserialization of Untrusted Data. CVSS score: 8.0/10. Published 2026-08-07.
- How severe is CVE-2026-68772?
- High severity. CVSS v3 base score is 8.0 out of 10.