CVE-2025-71357

picklescan before 0.0.30 fails to detect malicious pickle files using idlelib.pyshell.ModifiedInterpreter.runcommand in reduce methods. Attackers can embed undetected code in pickle files that executes remote commands when loaded by victims.

CVSS 4.0

7.6CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

7.8CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS

0.4% chance of exploitation in the next 30 days; higher than 33% of CVEs (scores of 2026-10-25)

CWE

CWE-502

Published

2026-06-21

Modified

2026-10-12

Record from

the NVD, synced 2026-10-19

Affected

• mmaitre314:picklescan

Packages (OSV)

References

• https://github.com/mmaitre314/picklescan/security/advisories/GHSA-j343-8v2j-ff7w
• https://www.vulncheck.com/advisories/picklescan-arbitrary-code-execution-via-undetected-idlelib-pyshell-modifiedinterpreter-runcommand
• https://github.com/mmaitre314/picklescan/security/advisories/GHSA-j343-8v2j-ff7w

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