Scrapy authorization header leakage on cross-domain redirect
Impact
When you send a request with the Authorization header to one domain, and the response asks to redirect to a different domain, Scrapy’s built-in redirect middleware creates a follow-up redirect request that keeps the original Authorization header, leaking its content to that second domain.
The right behavior would be to drop the Authorization header instead, in this scenario.
Patches
Upgrade to Scrapy 2.11.1.
If you are using Scrapy 1.8 or a lower version, and upgrading to Scrapy 2.11.1 is not an option, you may upgrade to Scrapy 1.8.4 instead.
Workarounds
If you cannot upgrade, make sure that you are not using the Authentication header, either directly or through some third-party plugin.
If you need to use that header in some requests, add "dont_redirect": True to the request.meta dictionary of those requests to disable following redirects for them.
If you need to keep (same domain) redirect support on those requests, make sure you trust the target website not to redirect your requests to a different domain.
Acknowledgements
This security issue was reported by @ranjit-git through huntr.com.
Software afectado
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| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Python (PyPI) | scrapy | >= 2, < 2.11.1, < 1.8.4 | 2.11.1, 1.8.4 |
Referencias
- https://github.com/scrapy/scrapy/security/advisories/GHSA-cw9j-q3vf-hrrv
- https://nvd.nist.gov/vuln/detail/CVE-2024-3574
- https://github.com/scrapy/scrapy/commit/ee7bd9d217fc126063575d5649f00bdeeca2faae
- https://github.com/scrapy/scrapy
- https://huntr.com/bounties/49974321-2718-43e3-a152-62b16eed72a9
- https://pypi.org/project/scrapy
- https://github.com/advisories/GHSA-cw9j-q3vf-hrrv
- Vector CVSS
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N- Debilidad (CWE)
CWE-200- Plataforma
- Python (PyPI)
- Paquete
scrapy- Publicada
- 15.02.2024
- Actualizado
- 11.10.2026 13:18
Fuentes y licencias
OSV / GitHub Advisory Database - PYSEC-2026-1908 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-cw9j-q3vf-hrrv - CC BY 4.0
Historial de vulnerabilidades: scrapy
Todas las vulnerabilidades publicadas de este paquete (Python (PyPI)), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 14
- Primera → última
- 09.2017 09.2026
- Sin corrección
- 1
- Explotada en ataques
- 0
Distribución por gravedad
- Alta 6
- Media 8
Divulgaciones por año
- 2017: 1
- 2018: 0
- 2019: 0
- 2020: 0
- 2021: 1
- 2022: 3
- 2023: 0
- 2024: 6
- 2025: 1
- 2026: 2
-
Scrapy authorization header leakage on cross-domain redirect esta entrada
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