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GHSA-5gp7-4733-2w2v

Duplicate Advisory: Picklescan Bypasses Unsafe Globals Check using pty.spawn

High Withdrawn Jun 18, 2026 PyPI
Severity
0.0 / 10
High · CVSS 4.0
Exploit chance (EPSS)
—
No score published
Known exploited
No
Not in CISA's catalog
Weakness
CWE-693 Protection Mechanism Failure
Fix
None yet
No fixed version published

Description

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-hgrh-qx5j-jfwx. This link is maintained to preserve external references.

Original Description

PickleScan before 0.0.33 fails to include the pty.spawn function in its unsafe globals list, allowing attackers to bypass security checks. Malicious actors can craft pickle payloads using pty.spawn to achieve arbitrary code execution when files are processed by PickleScan.

Affected versions

PyPI

PackageVulnerableFixed in
picklescan
all versions
No fix yet

How to fix

No fixed version has been published yet. Until one is, remove or replace the package, or turn off or isolate the affected feature. This page updates when a fix ships.

Severity breakdown

CVSS 4.0 0.0

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack vector
Network
Attack complexity
Low
Attack requirements
None
Privileges required
None
User interaction
Passive
Confidentiality (vulnerable system)
High
Integrity (vulnerable system)
High
Availability (vulnerable system)
High
Confidentiality (subsequent systems)
None
Integrity (subsequent systems)
None
Availability (subsequent systems)
None
Exploit maturity
Not defined
Scope
X

CVSS 3.1 8.8

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Weakness

CWE-693: Protection Mechanism Failure

The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.

References

Timeline

  1. Published
  2. Withdrawn
  3. Last updated by the source
AdvisorySeverityWhy it's related
GHSA-g38g-8gr9-h9xp
PickleScan has multiple stdlib modules with direct RCE not in blocklist
Critical Also affects picklescan
GHSA-vvpj-8cmc-gx39
PickleScan's pkgutil.resolve_name has a universal blocklist bypass
Critical Also affects picklescan
GHSA-7wx9-6375-f5wh
PickleScan's profile.run blocklist mismatch allows exec() bypass
Critical Also affects picklescan
GHSA-97f8-7cmv-76j2
Picklescan (scan_pytorch) Bypass via dynamic eval MAGIC_NUMBER
High Also affects picklescan
GHSA-m7j5-r2p5-c39r
picklescan vulnerable to arbitrary file create using logging.FileHandler
Medium Also affects picklescan
GHSA-9m3x-qqw2-h32h
picklescan missing detection by simple obfuscation of a `builtins.eval` call
Critical Also affects picklescan
GHSA-9726-w42j-3qjr
picklescan has Arbitrary file read using `io.FileIO`
High Also affects picklescan
GHSA-46h3-79wf-xr6c
Picklescan is vulnerable to RCE via missing detection when calling built-in python _operator.attrgetter
High Also affects picklescan
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