CVE-2026-42312

pyload-ng: non-admin SETTINGS users can disable outbound TLS peer verification

State: Published
Severity: 6.8 Medium
Published: May 11, 2026
Updated: May 11, 2026
Reserved: Apr 26, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	6.8 Medium	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N	GitHub_M

Weaknesses

CWE-295 Improper Certificate Validation
CWE-306 Missing Authentication for Critical Function
CWE-863 Incorrect Authorization

Affected Products

Product	Versions
pyloadpyload	< 0.5.0b3.dev100Affected

References

https://github.com/pyload/pyload/security/advisories/GHSA-ccxc-x975-4hh9

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