What’s Vulnerable › Vulnerabilities

CVE-2025-71351: picklescan - Remote Code Execution via timeit.timeit() Detection Bypass

• Severity: high (CVSS 7.6 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-21 · updated 2026-10-12
• Weakness: CWE-184

Description

picklescan before 0.0.25 fails to detect malicious pickle files that use timeit.timeit() in the __reduce__ method, allowing remote code execution. Attackers can craft pickle files that import dangerous libraries like os and execute arbitrary system commands, which evade picklescan detection and execute when pickle.load() is called.

Affected products

• picklescan: before 0.0.25 — fixed in 0.0.25

How to fix

Upgrade to a fixed version: picklescan 0.0.25. Check the vendor advisory for mitigations.

References

• https://github.com/mmaitre314/picklescan/security/advisories/GHSA-v7x6-rv5q-mhwc
• https://www.vulncheck.com/advisories/picklescan-remote-code-execution-via-timeit-timeit-detection-bypass
• https://github.com/mmaitre314/picklescan/security/advisories/GHSA-v7x6-rv5q-mhwc

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