High severity8.1NVD Advisory· Published Jun 22, 2026· Updated Jun 23, 2026
CVE-2025-71339
CVE-2025-71339
Description
Picklescan before 0.0.33 fails to detect the numpy.f2py.crackfortran._eval_length gadget in pickle __reduce__ methods, allowing arbitrary code execution. Attackers can craft malicious pickle files that execute arbitrary Python code when loaded by victims who trust Picklescan's safety validation.
AI Insight
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 | < 0.0.33 | 0.0.33 |
Affected products
1- Range: <0.0.33
Patches
Vulnerability mechanics
References
9- github.com/advisories/GHSA-6556-fwc2-fg2pghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2025-71339ghsaADVISORY
- github.com/mmaitre314/picklescan/commit/70c1c6c31beb6baaf52c8db1b6c3c0e84a6f9dabghsaWEB
- github.com/mmaitre314/picklescan/pull/53ghsaWEB
- github.com/mmaitre314/picklescan/releases/tag/v0.0.33ghsaWEB
- github.com/mmaitre314/picklescan/security/advisories/GHSA-6556-fwc2-fg2pnvdWEB
- github.com/pypa/advisory-database/tree/main/vulns/picklescan/PYSEC-2026-1783.yamlghsaWEB
- pypi.org/project/picklescanghsaWEB
- www.vulncheck.com/advisories/picklescan-arbitrary-code-execution-via-numpy-f2py-crackfortran-eval-length-gadgetnvdWEB
News mentions
1- Picklescan: Nine RCE Vulnerabilities Disclosed Together via Detection BypassesVypr Intelligence · Jun 23, 2026