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Vulnerability record · CVE-2025-71371 · published 30 June 2026

CVE-2025-71371: Deserialization of untrusted data vulnerability

picklescan before 0.0.29 fails to detect malicious pickle files using code.InteractiveInterpreter.runcode in reduce methods. Attackers can craft pickle payloads that bypass picklescan detection and execute arbitrary code when loaded via pickle.load().

7.6 CVSS 4.0 High EPSS 0.54% · top 56.6% CWE-502 · Deserialization of untrusted data Deferred
7.6CVSS 4.0 base score
0.54%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
1 Jul 2026Last modified by NVD

Description

picklescan before 0.0.29 fails to detect malicious pickle files using code.InteractiveInterpreter.runcode in reduce methods. Attackers can craft pickle payloads that bypass picklescan detection and execute arbitrary code when loaded via pickle.load().

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/mmaitre314/picklescan/security/advisories/GHSA-cj3c-v495-4xqh
https://www.vulncheck.com/advisories/picklescan-remote-code-execution-via-code-interactiveinterpreter-detection-bypass
https://github.com/mmaitre314/picklescan/security/advisories/GHSA-cj3c-v495-4xqh

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Source: NIST National Vulnerability Database (record CVE-2025-71371), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.