TI-2026-30620 Aliases CVE-2026-42312 GHSA-ccxc-x975-4hh9

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

HIGH 65CWE-295Published 2026-05-11 · Updated 2026-05-11

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: High
Impact type: Spoofing, Security bypass
Confidentiality · integrity · availability: High · High · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-295 and CWE-306.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00174 6th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed pyload (pyload): 0.5.0b3.dev100pyload-ng (PyPI): 0.5.0b3.dev100

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
pyload	pyload	before 0.5.0b3.dev100	0.5.0b3.dev100	Patch available	CNA
—	pyload-ng (PyPI)	before 0.5.0b3.dev100	0.5.0b3.dev100	Patch available	GHSA-ccxc-x975-4hh9

pyload Vendorpyload Affected before 0.5.0b3.dev100 Fixed in 0.5.0b3.dev100 Patch available CNA
pyload-ng (PyPI) Vendor— Affected before 0.5.0b3.dev100 Fixed in 0.5.0b3.dev100 Patch available GHSA-ccxc-x975-4hh9

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:pyload-ng_project:pyload-ng::::::python::*	before 0.5.0b3.dev100	Vulnerable	Pyload-ng Project

cpe:2.3:a:pyload-ng_project:pyload-ng:*:*:*:*:*:python:*:* Versions before 0.5.0b3.dev100 Vulnerable ·Pyload-ng Project

Remediation

Fix · CNA pyload (pyload) Fixed in 0.5.0b3.dev100
Fix · GHSA-ccxc-x975-4hh9 pyload-ng (PyPI) Fixed in 0.5.0b3.dev100 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-42312
2026-10-03 Alias added: GHSA-ccxc-x975-4hh9

References

Exploit 1

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

Advisory 5

Other 2

TI-2023-00282 Code Injection in pyload/pyload CVSS 3.1CRITICAL 9.8
TI-2025-34556 pyLoad CNL Blueprint is vulnerable to Path Traversal through `dlc_path` leading to Remote Code Execution (RCE) CVSS 3.1CRITICAL 9.8
TI-2025-33765 pyLoad vulnerable to remote code execution through js2py onCaptchaResult CVSS 3.1CRITICAL 9.8
TI-2023-00412 Excessive Attack Surface in pyload/pyload CVSS 3.1CRITICAL 9.8
TI-2026-27589 pyLoad has SSRF fix bypass via HTTP redirect CVSS 4.0CRITICAL 9.3
TI-2026-26332 pyLoad: Server-Side Request Forgery via Download Link Submission Enables Cloud Metadata Exfiltration CVSS 4.0CRITICAL 9.3

See all 49 →

Sources

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