CVE-2026-42312

MEDIUM

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

Title source: cna
STIX 2.1

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.

References (1)

Core 1
Core References

Scores

CVSS v3 6.8
EPSS 0.0002
EPSS Percentile 5.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-295 CWE-306 CWE-863
Status published
Products (3)
pyload/pyload < 0.5.0b3.dev100
pyload-ng_project/pyload-ng < 0.5.0b3.dev100
pypi/pyload-ng 0 - 0.5.0b3.dev100PyPI
Published May 11, 2026
Tracked Since May 11, 2026