What’s Vulnerable › Vulnerabilities

CVE-2020-13092

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-05-15 · updated 2026-06-17
• Weakness: CWE-502

Description

scikit-learn (aka sklearn) through 0.23.0 can unserialize and execute commands from an untrusted file that is passed to the joblib.load() function, if __reduce__ makes an os.system call. NOTE: third parties dispute this issue because the joblib.load() function is documented as unsafe and it is the user's responsibility to use the function in a secure manner

Affected products

• scikit-learn/scikit-learn: through 0.23.0

References

• https://github.com/0FuzzingQ/vuln/blob/master/sklearn%20unserialize.md
• https://scikit-learn.org/stable/modules/model_persistence.html#security-maintainability-limitations
• https://github.com/0FuzzingQ/vuln/blob/master/sklearn%20unserialize.md
• https://scikit-learn.org/stable/modules/model_persistence.html#security-maintainability-limitations

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