pyLoad open redirect vulnerability due to improper validation of the is_safe_url function

Exploitation

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

CVSS

6.1 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS

• CVE-2024-24808: 0.55% estimated exploitation activity in the next 30 days; percentile 45.80 (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 Open redirect vulnerability due to incorrect validation of input values when redirecting users after login. Details pyload is validating URLs via the getredirecturl function when redirecting users at login. The URL entered in the next variable goes through the issafeurl function, where a lack of validation can redirect the user to an arbitrary domain. The documentation in the urllib library shows that improper URLs are recognized as relative paths when using the urlparse function. (https://docs.python.org/3/library/urllib.parse.html#urllib.parse.urlparse) For example, When an unusual URL like https:///example.com is entered, urlparse interprets it as a relative path, but in the actual request it is converted to https://example.com due to url normalization. PoC 1. In the next variable, insert the URL to which you want to redirect the user. 2. Check that it is possible to bypass url validation and redirect users to an arbitrary url. Impact An attacker can use this vulnerability…

Published by the source

5 Feb 2024, 23:23 UTC

Last modified by the source

10 Sep 2026, 03:50 UTC

Source last checked

26 Oct 2026, 13:12 UTC

1. Revision 2 · amended · 26 Oct 2026

   Amended from ghsa record GHSA-g3cm-qg2v-2hj5

2. Revision 1 · created · 24 Oct 2026

   Published from osv record GHSA-g3cm-qg2v-2hj5

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# Patch Next advisory brief: CVE-2024-24808

Advisory: pyLoad open redirect vulnerability due to improper validation of the is_safe_url function
IDs: CVE-2024-24808, GHSA-g3cm-qg2v-2hj5
Record: https://patchnext.com/advisories/cve-2024-24808 (revision 2, source checked 26 Oct 2026, 13:12 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 6.1)
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.dev79. A vendor fix does not mean a deployment is fixed.

## Affected components
- PyPI pyload-ng: affected < 0.5.0b3.dev79; fixed in 0.5.0b3.dev79

## 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-g3cm-qg2v-2hj5 (OSV record GHSA-g3cm-qg2v-2hj5 lists affected ranges: PyPI pyload-ng >=0 <0.5.0b3.dev79 (fixed))
- Verified: https://github.com/advisories/GHSA-g3cm-qg2v-2hj5 (GitHub-reviewed advisory GHSA-g3cm-qg2v-2hj5 lists affected ranges: PyPI pyload-ng >=0 <0.5.0b3.dev79)

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