CVE-2025-71321

Critical

Description

picklescan before 0.0.33 contains an arbitrary file writing vulnerability that allows attackers to bypass the dangerous blocklist by using distutils.file_util.write_file. Attackers can construct malicious pickle objects to overwrite critical system files and achieve denial of service or remote code execution.

SeverityCritical

CVSS9.8

Exploit probability—

ProductPicklescan

PublishedJun 17, 2026

First seenJun 17, 2026

Weakness typeCWE-502Deserialization of untrusted data

How to fix

Update

picklescan0.0.33 or later

Vendor advisories

github.com/mmaitre314/picklescan/security/advisories/GHSA-m273-6v24-x4m4

Affected products

Product	Affected versions	Fixed in
picklescanPyPI	v < 0.0.33	0.0.33

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.