CVE-2026-53874

Critical

Description

picklescan before 1.0.1 contains an unsafe deserialization vulnerability allowing unauthenticated users to execute arbitrary code by hiding eval calls nested under callable objects via getattr. Attackers can embed malicious code in pickle files that evades detection but executes when the pickle is loaded from untrusted sources.

SeverityCritical

CVSS9.8

Exploit probability—

ProductPicklescan

PublishedJun 17, 2026

First seenJun 17, 2026

Weakness typeCWE-502Deserialization of untrusted data

How to fix

Update

picklescan1.0.1 or later

Vendor advisories

github.com/mmaitre314/picklescan/security/advisories/GHSA-9m3x-qqw2-h32h

Affected products

Product	Affected versions	Fixed in
picklescanPyPI	v < 1.0.1	1.0.1

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