CVE-2025-71322
PickleScan - Unsafe Globals Check Bypass via pty.spawn Function
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.
Fixes and workarounds
Fix
picklescan (PyPI): OSV reports a fixed version 0.0.33. Check the advisory for supported release branches.
Source: OSV GHSA-hgrh-qx5j-jfwxAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| PickleScan PickleScan picklescan
pypi |
≥ 0; < 0.0.33 (affected, semver) 0.0.33 (unaffected, semver) Other versions: unaffected |
CNA: VulnCheck |
picklescanpicklescan
PyPI |
0.0.1 (affected, PyPI) 0.0.10 (affected, PyPI) 0.0.11 (affected, PyPI) 0.0.12 (affected, PyPI) 0.0.13 (affected, PyPI) 0.0.14 (affected, PyPI) 0.0.15 (affected, PyPI) 0.0.16 (affected, PyPI) 0.0.17 (affected, PyPI) 0.0.18 (affected, PyPI) 0.0.19 (affected, PyPI) 0.0.2 (affected, PyPI) 0.0.20 (affected, PyPI) 0.0.21 (affected, PyPI) 0.0.22 (affected, PyPI) 0.0.23 (affected, PyPI) 0.0.24 (affected, PyPI) 0.0.25 (affected, PyPI) 0.0.26 (affected, PyPI) 0.0.27 (affected, PyPI) 0.0.28 (affected, PyPI) 0.0.29 (affected, PyPI) 0.0.3 (affected, PyPI) 0.0.30 (affected, PyPI) 0.0.31 (affected, PyPI) 0.0.32 (affected, PyPI) 0.0.4 (affected, PyPI) 0.0.5 (affected, PyPI) 0.0.6 (affected, PyPI) 0.0.7 (affected, PyPI) 0.0.8 (affected, PyPI) 0.0.9 (affected, PyPI) Ecosystem version events: introduced 0; fixed 0.0.33 Source events (ECOSYSTEM)Other versions: unaffected |
OSV GHSA-hgrh-qx5j-jfwx |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 8.7 high |
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 | CNA: VulnCheck |
| 3.1 / 8.8 high |
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | CNA: VulnCheck |
Exploit evidence
- https://github.com/mmaitre314/picklescan/security/advisories/GHSA-hgrh-qx5j-jfwx
exploit · ADP: CISA-ADP
References
- https://github.com/mmaitre314/picklescan/security/advisories/GHSA-hgrh-qx5j-jfwxCNA: VulnCheck · vendor-advisory
- https://www.vulncheck.com/advisories/picklescan-unsafe-globals-check-bypass-via-pty-spawn-functionCNA: VulnCheck · third-party-advisory
- https://github.com/mmaitre314/picklescan/security/advisories/GHSA-hgrh-qx5j-jfwxADP: CISA-ADP · exploit
- https://github.com/advisories/GHSA-hgrh-qx5j-jfwxOSV / GitHub Security Advisories · advisory
- https://osv.dev/vulnerability/GHSA-hgrh-qx5j-jfwxOSV / GitHub Security Advisories · osv
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