TI-2026-38869 Aliases CVE-2026-53873 GHSA-7wx9-6375-f5wh

picklescan - Arbitrary Code Execution via profile.run() Blocklist Bypass

HIGH 81CWE-184Published 2026-06-17 · Updated 2026-06-17

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: —
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub.

Summary

picklescan before 1.0.4 contains an incomplete blocklist for the profile module that fails to block the module-level profile.run() function, allowing attackers to achieve arbitrary code execution via exec(). Attackers can craft malicious pickle files calling profile.run(statement) to execute arbitrary Python code while picklescan reports zero security issues.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.0046 40th percentileScored 2026-11-07

Fix Fixed picklescan (picklescan): 1.0.4picklescan (PyPI): 1.0.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
picklescan	picklescan	before 1.0.4	1.0.4	Patch available	CNA
—	picklescan (PyPI)	before 1.0.4	1.0.4	Patch available	GHSA-7wx9-6375-f5wh

picklescan Vendorpicklescan Affected before 1.0.4 Fixed in 1.0.4 Patch available CNA
picklescan (PyPI) Vendor— Affected before 1.0.4 Fixed in 1.0.4 Patch available GHSA-7wx9-6375-f5wh

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:mmaitre314:picklescan::::::::	—	—	picklescan

cpe:2.3:a:mmaitre314:picklescan:*:*:*:*:*:*:*:* Versions — — ·picklescan

Remediation

Fix · CNA picklescan (picklescan) Fixed in 1.0.4
Fix · GHSA-7wx9-6375-f5wh picklescan (PyPI) Fixed in 1.0.4 Advisory →

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2026-06-17
picklescan 1.0.4
2 records Highest priority Priority HIGH 2 HIGH
Other records, highest priority first
- TI-2026-03009 picklescan - Universal Blocklist Bypass via pkgutil.resolve_namePriority HIGH 82
Show all 2 records →

Timeline

2026-10-02 Threatist record created from CVE-2026-53873
2026-10-03 Alias added: GHSA-7wx9-6375-f5wh
2026-10-25 EPSS moved to the below the 50th percentile

References

Advisory 2

Other 1

https://github.com/mmaitre314/picklescan

TI-2026-03009 picklescan - Universal Blocklist Bypass via pkgutil.resolve_name CVSS 4.0CRITICAL 10.0
TI-2026-40680 picklescan - Remote Code Execution via Unblocked Standard Library Modules CVSS 4.0CRITICAL 9.3
TI-2026-38870 picklescan - Arbitrary Code Execution via Obfuscated eval Call CVSS 4.0CRITICAL 9.3
TI-2025-43446 picklescan - Detection Bypass via STACK_GLOBAL Opcode Parsing Logic Flaw CVSS 4.0CRITICAL 9.3
TI-2025-43444 picklescan - Remote Code Execution via Unblocked ctypes Module CVSS 4.0CRITICAL 9.3
TI-2025-43442 picklescan - Arbitrary File Writing via distutils Module Bypass CVSS 4.0CRITICAL 9.3

See all 57 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences