CVE-2026-56315

picklescan before 1.0.4 fails to block at least seven Python standard library modules (including uuid, _osx_support, _aix_support, _pyrepl.pager, and imaplib) exposing eight functions that provide direct arbitrary command execution. Attackers can craft malicious pickle files importing these unblocked modules to achieve remote code execution while bypassing picklescan's safety validation entirely.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/mmaitre314/picklescan/security/advisories/GHSA-g38g-8gr9-h9xp
https://www.vulncheck.com/advisories/picklescan-remote-code-execution-via-unblocked-standard-library-modules
https://github.com/mmaitre314/picklescan/security/advisories/GHSA-g38g-8gr9-h9xp

Configurations

No configuration.

History

23 Jun 2026, 14:17

Type	Values Removed	Values Added
References	~~() https://github.com/mmaitre314/picklescan/security/advisories/GHSA-g38g-8gr9-h9xp -~~	() https://github.com/mmaitre314/picklescan/security/advisories/GHSA-g38g-8gr9-h9xp -

23 Jun 2026, 13:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-23 13:16

Updated : 2026-06-23 14:52

NVD link : CVE-2026-56315

Mitre link : CVE-2026-56315

CVE.ORG link : CVE-2026-56315

JSON object : View

Products Affected

No product.

CWE

CWE-184

Incomplete List of Disallowed Inputs

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