CVE-2026-68772 ZenML 0.94.6 Remote Code Execution via CloudpickleMaterializer
Attackers with write access to a shared artifact store can execute arbitrary code by planting malicious pickle files in ZenML.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-68772?
CVE-2026-68772 is a high-severity unsafe deserialization vulnerability in ZenML, published on 7 Aug 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-502
Which versions are affected by CVE-2026-68772?
How do I fix CVE-2026-68772?
No fix has been published for CVE-2026-68772 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2026-68772 being exploited?
There is no known exploitation of CVE-2026-68772 in the wild and no public exploit code.
Sources
Also known as GHSA-p65j-fxc2-99ww.