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CVE-2026-3490

CVE-2026-3490 · picklescan - Universal Blocklist Bypass via pkgutil.resolve_name

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 10.0 · Critical · EPSS 0.8% · Fix available

Published
Updated

Stack: python

Affected products and versions

  • picklescan

    Versions
    • ≥ 0, < 1.0.4: Affected (semver)
    • 1.0.4: Not affected (semver)

    Update to 1.0.4

  • picklescan PyPI

    Versions
    • 0.0.1
    • 0.0.10
    • 0.0.11
    • 0.0.12
    • 0.0.13
    • 0.0.14
    • 0.0.15
    • 0.0.16
    • 0.0.17
    • 0.0.18
    • 0.0.19
    • 0.0.2
    • 0.0.20
    • 0.0.21
    • 0.0.22
    • 0.0.23
    • 0.0.24
    • 0.0.25
    • 0.0.26
    • 0.0.27
    • 0.0.28
    • 0.0.29
    • 0.0.3
    • 0.0.30
    • 0.0.31
    • 0.0.32
    • 0.0.33
    • 0.0.34
    • 0.0.35
    • 0.0.4
    • 0.0.5
    • 0.0.6
    • 0.0.7
    • 0.0.8
    • 0.0.9
    • 1.0.0
    • 1.0.1
    • 1.0.2
    • 1.0.3
    Affected ranges
    • ECOSYSTEM: < 1.0.4

    Update to 1.0.4

Original sources

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