Moderate severityNVD Advisory· Published Jun 22, 2026
picklescan - Arbitrary Code Execution via Undetected ensurepip._run_pip Function
CVE-2025-71344
Description
picklescan before 0.0.30 (affected versions 0.0.26 and earlier) fails to detect the ensurepip._run_pip built-in function when scanning pickle files, allowing attackers to execute arbitrary code. Malicious pickle files embedding ensurepip._run_pip calls in __reduce__ methods bypass picklescan detection and achieve remote code execution upon pickle.load() invocation.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
picklescanPyPI | < 0.0.30 | 0.0.30 |
Affected products
1- Range: <=0.0.26
Patches
Vulnerability mechanics
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References
4- github.com/advisories/GHSA-xp4f-hrf8-rxw7ghsaADVISORY
- github.com/mmaitre314/picklescan/security/advisories/GHSA-xp4f-hrf8-rxw7ghsavendor-advisoryWEB
- www.vulncheck.com/advisories/picklescan-arbitrary-code-execution-via-undetected-ensurepip-run-pip-functionmitrethird-party-advisory
- github.com/mmaitre314/picklescan/commit/1931c2d04eaca8d20597705ff39cab78ba364e4bghsaWEB
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