CVE-2026-3490
picklescan - Universal Blocklist Bypass via pkgutil.resolve_name
- State
- Published
- Severity
- 10.0 Critical
- Published
- Jun 17, 2026
- Updated
- Jun 18, 2026
- Reserved
- Mar 3, 2026
Description
picklescan before 1.0.4 fails to block pkgutil.resolve_name, allowing attackers to bypass the entire blocklist by resolving any dangerous function through indirect REDUCE calls. Remote attackers can invoke any blocked function such as os.system, builtins.exec, or subprocess.call to achieve remote code execution.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 10.0 Critical | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H | VulnCheck |
| 3.1 | 10.0 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-183 Permissive List of Allowed Inputs
Affected Products
| Product | Versions |
|---|---|
picklescanpicklescan |
|
References
- GHSA Advisory GHSA-vvpj-8cmc-gx39vendor-advisory
- VulnCheck Advisory: picklescan - Universal Blocklist Bypass via pkgutil.resolve_namethird-party-advisory
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