CVE-2026-42312

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.

Predictions

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

References

• https://github.com/pyload/pyload/security/advisories/GHSA-ccxc-x975-4hh9
• https://nvd.nist.gov/vuln/detail/CVE-2026-42312
• https://github.com/advisories/GHSA-4744-96p5-mp2j
• https://github.com/advisories/GHSA-ppvx-rwh9-7rj7
• https://github.com/advisories/GHSA-r7mc-x6x7-cqxx
• https://github.com/advisories/GHSA-w48f-wwwf-f5fr
• https://github.com/pyload/pyload
• https://github.com/advisories/GHSA-ccxc-x975-4hh9

CWEs

CWE-295 CWE-306 CWE-863