What’s Vulnerable › Vulnerabilities

CVE-2025-71378: picklescan - Remote Code Execution via Undetected cProfile.runctx in Pickle Files

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-06-21 · updated 2026-10-12
• Weakness: CWE-502

Description

picklescan before 0.0.30 fails to detect cProfile.runctx function calls in pickle file reduce methods, allowing attackers to execute arbitrary code. Malicious pickle files bypass picklescan detection and execute remote code when loaded via pickle.load().

Affected products

• picklescan: before 0.0.30 — fixed in 0.0.30

How to fix

Upgrade to a fixed version: picklescan 0.0.30. Check the vendor advisory for mitigations.

References

• https://github.com/mmaitre314/picklescan/security/advisories/GHSA-9w88-8rmg-7g2p
• https://www.vulncheck.com/advisories/picklescan-remote-code-execution-via-undetected-cprofile-runctx-in-pickle-files
• https://github.com/mmaitre314/picklescan/security/advisories/GHSA-9w88-8rmg-7g2p

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