pyload-ng: Authorization Bypass for SSL Certificate/Key Configuration Due to Option Name Mismatch in pyload-ng

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

6.8 · CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

EPSS

• CVE-2026-35586: 0.14% estimated exploitation activity in the next 30 days; percentile 3.53 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Summary The ADMINONLYCOREOPTIONS authorization set in setconfigvalue() uses incorrect option names sslcert and sslkey, while the actual configuration option names are sslcertfile and sslkeyfile. This name mismatch causes the admin-only check to always evaluate to False, allowing any user with SETTINGS permission to overwrite the SSL certificate and key file paths. Additionally, the sslcertchain option was never added to the admin-only set at all. Details The vulnerability is in src/pyload/core/api/init.py. The ADMINONLYCOREOPTIONS set is defined at lines 237-248: The actual config option names are defined in src/pyload/core/config/default.cfg:39-41: The authorization check at line 267 compares the incoming (category, option) tuple against this set: When a request arrives with option=sslcertfile, the check evaluates ("webui", "sslcertfile") in ADMINONLYCOREOPTIONS which is False because the set contains ("webui", "sslcert"), not ("webui", "sslcertfile"). The admin-only guard is…

Published by the source

8 Apr 2026, 00:04 UTC

Last modified by the source

8 Jun 2026, 19:15 UTC

Source last checked

26 Oct 2026, 13:44 UTC

1. Revision 2 · amended · 26 Oct 2026

   Amended from ghsa record GHSA-ppvx-rwh9-7rj7

2. Revision 1 · created · 24 Oct 2026

   Published from osv record GHSA-ppvx-rwh9-7rj7

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# Patch Next advisory brief: CVE-2026-35586

Advisory: pyload-ng: Authorization Bypass for SSL Certificate/Key Configuration Due to Option Name Mismatch in pyload-ng
IDs: CVE-2026-35586, GHSA-ppvx-rwh9-7rj7
Record: https://patchnext.com/advisories/cve-2026-35586 (revision 2, source checked 26 Oct 2026, 13:44 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 6.8)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: pyload-ng 0.5.0b3.dev97. A vendor fix does not mean a deployment is fixed.

## Affected components
- PyPI pyload-ng: affected < 0.5.0b3.dev97; fixed in 0.5.0b3.dev97

## Suggested inspection (read-only)
- `python -m pip show pyload-ng`: prints the installed version. Run with the environment that serves production active.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on pyload-ng.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-ppvx-rwh9-7rj7 (OSV record GHSA-ppvx-rwh9-7rj7 lists affected ranges: PyPI pyload-ng >=0 <0.5.0b3.dev97 (fixed))
- Verified: https://github.com/advisories/GHSA-ppvx-rwh9-7rj7 (GitHub-reviewed advisory GHSA-ppvx-rwh9-7rj7 lists affected ranges: PyPI pyload-ng >=0 <0.5.0b3.dev97)

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