CVE-2025-71374: picklescan - Arbitrary Code Execution via Undetected profile.Profile.run

Severity: high (CVSS 8.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-06-30 · updated 2026-10-12
Weakness: CWE-502

Description

picklescan before 0.0.29 fails to detect the built-in python profile.Profile.run function when used in pickle reduce methods, allowing attackers to execute arbitrary code. Remote attackers can craft malicious pickle files that bypass picklescan detection and achieve code execution upon deserialization.

Affected products

picklescan: before 0.0.29 — fixed in 0.0.29

How to fix

Upgrade to a fixed version: picklescan 0.0.29. Check the vendor advisory for mitigations.

References

https://github.com/mmaitre314/picklescan/security/advisories/GHSA-x696-vm39-cp64
https://www.vulncheck.com/advisories/picklescan-arbitrary-code-execution-via-undetected-profile-profile-run
https://github.com/mmaitre314/picklescan/security/advisories/GHSA-x696-vm39-cp64

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