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EUVD-2026-310784

fkie_cve-2026-42312

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 option ("general", "ssl_verify") is not on that allowlist. Any authenticated user with the non-admin SETTINGS permission can set general.ssl_verify = off, and every subsequent outbound pycurl request is made with SSL_VERIFYPEER=0 and SSL_VERIFYHOST=0 — TLS peer and hostname verification are fully disabled. An on-path attacker can then present forged certificates for any hostname pyload fetches. 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.

GHSA-ccxc-x975-4hh9 — pyload-ng: non-admin SETTINGS users can disable outbound TLS peer verification via unrestricted `ssl_verify` config (in…

Affected: PyPI: pyload-ng

### Summary

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 option `("general", "ssl_verify")` is **not** on that allowlist. Any authenticated user with the non-admin `SETTINGS` permission can set `general.ssl_verify = off`, and every subsequent outbound pycurl request is made with `SSL_VERIFYPEER=0` and `SSL_VERIFYHOST=0` — TLS peer and hostname verification are fully disabled. An on-path attacker can then present forged certificates for any hostname pyload fetches.

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.

### Details

**Writer** — `src/pyload/core/api/__init__.py`, `set_config_value()` (around lines 215–290). The function is decorated with `@permission(Perms.SETTINGS)` and only rejects writes when `(category, option)` appears in `ADMIN_ONLY_CORE_OPTIONS`:

```python ADMIN_ONLY_CORE_OPTIONS = { ("general", "storage_folder"), ("log", "syslog_host"), ("log", "syslog_port"), ("proxy", "password"), ("proxy", "username"), ("reconnect", "script"), ("webui", "host"), ("webui", "ssl_certfile"), ("webui", "ssl_keyfile"), ("webui", "ssl_certchain"), ("webui", "use_ssl"), } ... if (category, option) in ADMIN_ONLY_CORE_OPTIONS and not is_admin: self.pyload…

PYSEC-2026-126

Affected: PyPI: pyload-ng