Open-source package vulnerability · PyPI

GHSA-5rph-q42j-36j9: Duplicate Advisory: Picklescan has pickle parsing logic flaw that leads to malicious pickle file bypass

criticalCVSS 4.0 9.3 · 3.1 9.8

This advisory was withdrawn on Jun 18, 2026. The publisher no longer considers it a valid vulnerability.

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-9gvj-pp9x-gcfr. This link is maintained to preserve external references. Original Description picklescan before 0.0.27 contains a parsing logic error in the listglobals function when handling STACKGLOBAL opcodes, failing to track arguments in the correct range and allowing malicious pickle files to bypass detection.

Published Jun 17, 2026 · Updated Jun 18, 2026

Affected packages

picklescan

Ecosystem: PyPI
Affected: < 0.0.27
Fixed in: No patched version yet
Check: pip show picklescan

Advisory details

From the GitHub Advisory Database (CC BY 4.0).

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-9gvj-pp9x-gcfr. This link is maintained to preserve external references.

Original Description

picklescan before 0.0.27 contains a parsing logic error in the _list_globals function when handling STACK_GLOBAL opcodes, failing to track arguments in the correct range and allowing malicious pickle files to bypass detection. Attackers can craft pickle files with arguments at position zero to trigger unexpected exceptions and evade security scanning.

References

How this page is made: the data panel comes from the GitHub Advisory Database, CISA’s KEV catalog, the NVD and FIRST EPSS, and updates twice a day. No analysis has been written for this entry yet. Methodology

More PyPI vulnerabilities

All PyPI entries