Arbitrary Code Execution in Picklescan by Mmaitre314
CVE-2025-71356

7.6HIGH

Key Information:

Vendor

Picklescan

Status
Picklescan
Vendor
CVE Published:
4 July 2026

What is CVE-2025-71356?

Picklescan versions before 0.0.28 are susceptible to an arbitrary code execution vulnerability that occurs due to the inability of the software to detect malicious calls to torch.fx.experimental.symbolic_shapes.ShapeEnv.evaluate_guards_expression within pickle files. This vulnerability enables attackers to craft malicious pickle files containing undetected code, which is executed remotely when victims load these compromised files.

Affected Version(s)

picklescan 0 < 0.0.28

picklescan 0.0.28

References

https://github.com/mmaitre314/picklescan/security/advisor...
vendor-advisory
https://www.vulncheck.com/advisories/picklescan-arbitrary...
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
.