CVE-2026-31223: Snorkel

High severity, CVSS 8.8. EPSS: 0.7% chance of exploitation in the next 30 days.

The snorkel library thru v0.10.0 contains a critical insecure deserialization vulnerability (CWE-502) in the BaseLabeler.load() method of the BaseLabeler class. The method loads serialized labeler models using the unsafe pickle.load() function on user-supplied file paths without any validation or security controls. Python's pickle module is inherently dangerous for deserializing untrusted data, as it can execute arbitrary code during the deserialization process. A remote attacker can exploit this by providing a maliciously crafted pickle file, leading to arbitrary code execution on the victim's system when the file is loaded via the vulnerable method.

Affected products

• Snorkel Snorkel: up to and including 0.10.0

Published 2026-05-12. Last modified 2026-06-17.