snorkel up to 0.10.0 Pickle MultitaskClassifier.load deserialization

Summaryinfo

A vulnerability labeled as critical has been found in snorkel up to 0.10.0. The affected element is the function MultitaskClassifier.load of the component Pickle Module. The manipulation results in deserialization. This vulnerability is reported as CVE-2026-31224. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability, which was classified as critical, was found in snorkel up to 0.10.0. Affected is the function MultitaskClassifier.load of the component Pickle Module. The manipulation with an unknown input leads to a deserialization vulnerability. CWE is classifying the issue as CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

The snorkel library thru v0.10.0 contains an insecure deserialization vulnerability (CWE-502) in the MultitaskClassifier.load() method of the MultitaskClassifier class. The method loads model weight files using torch.load() without enabling the security-restrictive weights_only=True parameter. This default behavior allows the deserialization of arbitrary Python objects via the Pickle module. A remote attacker can exploit this by providing a maliciously crafted model file, leading to arbitrary code execution on the victim's system when the file is loaded via the vulnerable method.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-31224 since 03/09/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 05/12/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Name

• snorkel

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8
• 0.9
• 0.10.0

CPE 2.3info

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CPE 2.2info

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