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CVE-2026-42313

CVE-2026-42313 · pyload-ng: non-admin SETTINGS users can redirect all outbound traffic through an attacker-controlled proxy

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

pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev100, the set_config_value() API method (@permission(Perms.SETTINGS)) in src/pyload/core/api/__init__.py gates security-sensitive options behind a hand-maintained allowlist ADMIN_ONLY_CORE_OPTIONS. The allowlist contains ("proxy", "username") and ("proxy", "password") — which protect the proxy credentials — but it does not include ("proxy", "enabled"), ("proxy", "host"), ("proxy", "port"), or ("proxy", "type"). Any authenticated user with the non-admin SETTINGS permission can enable proxying and point pyload at any host they control. From that point, every outbound download, captcha fetch, update check, and plugin HTTP call is transparently routed through the attacker. This is a direct continuation of the fix family CVE-2026-33509 / CVE-2026-35463 / CVE-2026-35464 / CVE-2026-35586, each of which patched a different missed option in the same allowlist. This vulnerability is fixed in 0.5.0b3.dev100.

CVSS 8.3 · High · EPSS 0.4% · Fix available

Published
Updated

Stack: python

Affected products and versions

  • pyload

    Versions
    • < 0.5.0b3.dev100: Affected

    No fix published

  • pyload-ng PyPI

    Versions
    • 0.5.0a5.dev528
    • 0.5.0a5.dev532
    • 0.5.0a5.dev535
    • 0.5.0a5.dev536
    • 0.5.0a5.dev537
    • 0.5.0a5.dev539
    • 0.5.0a5.dev540
    • 0.5.0a5.dev545
    • 0.5.0a5.dev562
    • 0.5.0a5.dev564
    • 0.5.0a5.dev565
    • 0.5.0a6.dev570
    • 0.5.0a6.dev578
    • 0.5.0a6.dev587
    • 0.5.0a7.dev596
    • 0.5.0a8.dev602
    • 0.5.0a9.dev615
    • 0.5.0a9.dev629
    • 0.5.0a9.dev632
    • 0.5.0a9.dev641
    • 0.5.0a9.dev643
    • 0.5.0a9.dev655
    • 0.5.0a9.dev806
    • 0.5.0b1.dev1
    • 0.5.0b1.dev2
    • 0.5.0b1.dev3
    • 0.5.0b1.dev4
    • 0.5.0b1.dev5
    • 0.5.0b2.dev10
    • 0.5.0b2.dev11
    • 0.5.0b2.dev12
    • 0.5.0b2.dev9
    • 0.5.0b3.dev13
    • 0.5.0b3.dev14
    • 0.5.0b3.dev17
    • 0.5.0b3.dev18
    • 0.5.0b3.dev19
    • 0.5.0b3.dev20
    • 0.5.0b3.dev21
    • 0.5.0b3.dev22
    • 0.5.0b3.dev24
    • 0.5.0b3.dev26
    • 0.5.0b3.dev27
    • 0.5.0b3.dev28
    • 0.5.0b3.dev29
    • 0.5.0b3.dev30
    • 0.5.0b3.dev31
    • 0.5.0b3.dev32
    • 0.5.0b3.dev33
    • 0.5.0b3.dev34
    • 0.5.0b3.dev35
    • 0.5.0b3.dev38
    • 0.5.0b3.dev39
    • 0.5.0b3.dev40
    • 0.5.0b3.dev41
    • 0.5.0b3.dev42
    • 0.5.0b3.dev43
    • 0.5.0b3.dev44
    • 0.5.0b3.dev45
    • 0.5.0b3.dev46
    • 0.5.0b3.dev47
    • 0.5.0b3.dev48
    • 0.5.0b3.dev49
    • 0.5.0b3.dev50
    • 0.5.0b3.dev51
    • 0.5.0b3.dev52
    • 0.5.0b3.dev53
    • 0.5.0b3.dev54
    • 0.5.0b3.dev57
    • 0.5.0b3.dev60
    • 0.5.0b3.dev62
    • 0.5.0b3.dev64
    • 0.5.0b3.dev65
    • 0.5.0b3.dev66
    • 0.5.0b3.dev67
    • 0.5.0b3.dev68
    • 0.5.0b3.dev69
    • 0.5.0b3.dev70
    • 0.5.0b3.dev71
    • 0.5.0b3.dev72
    • 0.5.0b3.dev73
    • 0.5.0b3.dev74
    • 0.5.0b3.dev75
    • 0.5.0b3.dev76
    • 0.5.0b3.dev77
    • 0.5.0b3.dev78
    • 0.5.0b3.dev79
    • 0.5.0b3.dev80
    • 0.5.0b3.dev81
    • 0.5.0b3.dev82
    • 0.5.0b3.dev85
    • 0.5.0b3.dev87
    • 0.5.0b3.dev88
    • 0.5.0b3.dev89
    • 0.5.0b3.dev90
    • 0.5.0b3.dev91
    • 0.5.0b3.dev92
    • 0.5.0b3.dev93
    • 0.5.0b3.dev94
    • 0.5.0b3.dev95
    • 0.5.0b3.dev96
    • 0.5.0b3.dev97
    • 0.5.0b3.dev98
    • 0.5.0b3.dev99
    Affected ranges
    • ECOSYSTEM: < 0.5.0b3.dev100

    Update to 0.5.0b3.dev100

Original sources

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