Remote Code Execution Vulnerability in picklescan by its Vendor
CVE-2025-71359

7.6HIGH

Key Information:

Vendor

Picklescan

Status
Picklescan
Vendor
CVE Published:
4 July 2026

What is CVE-2025-71359?

The vulnerability in picklescan affects versions prior to 0.0.29, allowing attackers to exploit unsafe deserialization. Specifically, it fails to detect malicious pickle payloads that leverage lib2to3.pgen2.grammar.Grammar.loads within the reduce method. This oversight enables attackers to craft pickle files containing harmful code, allowing execution during the deserialization process with pickle.load(). Organizations utilizing affected versions are urged to update to secure their applications against potential remote code execution attacks.

Affected Version(s)

picklescan 0 < 0.0.29

picklescan 0.0.29

References

https://github.com/mmaitre314/picklescan/security/advisor...
vendor-advisory
https://www.vulncheck.com/advisories/picklescan-unsafe-de...
third-party-advisory

CVSS V4

Score:
7.6
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

FredericDT
.