# CVE-2024-3574: PYSEC-2026-1908 - Scrapy authorization header leakage on cross-domain redirect

Source: https://junglewise.ai/threats/cve-2024-3574-scrapy-authorization-header-leakage-on-cross-domain-redirect  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-07  
License: CC BY 4.0 with a link back

CVE-2024-3574 · Severity: low · CVSS 3.1 · Published 2026-07-07

Scrapy authorization header leakage on cross-domain redirect

Technologies: [scrapy (PyPI)](https://junglewise.ai/threats/technologies/scrapy). Vendors: [PyPI](https://junglewise.ai/threats/vendors/pypi).

## Quick answers

**Is CVE-2024-3574 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2024-3574 being exploited in the wild.

**How severe is CVE-2024-3574?** Low severity, with a CVSS score of 3.1, published 7 July 2026.

**Which products and versions are affected?** scrapy (PyPI) ECOSYSTEM:introduced=0,fixed=1.8.4,introduced=2,fixed=2.11.1, ECOSYSTEM:introduced=2,fixed=2.11.1.

**Is there a fix for CVE-2024-3574?** Yes. scrapy (PyPI): upgrade to 2.11.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2024-3574?** Check whether you run scrapy (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- scrapy (PyPI): upgrade to 2.11.1 or later

  ```sh
  pip install "scrapy>=2.11.1"
  ```


## Affected products

- scrapy (PyPI) ECOSYSTEM:introduced=0,fixed=1.8.4,introduced=2,fixed=2.11.1, ECOSYSTEM:introduced=2,fixed=2.11.1

## Identifiers

- CVE-2024-3574
- GHSA-cw9j-q3vf-hrrv
- PYSEC-2026-1908

## Related threats

- [Scrapy arbitrary code execution via Referrer-Policy header](https://junglewise.ai/threats/cve-2026-105782-scrapy-arbitrary-module-import-via-referrer-policy-header-in)
- [Scrapy S3DownloadHandler cleartext transmission of AWS credentials](https://junglewise.ai/threats/cve-2026-84366-scrapy-s3downloadhandler-cleartext-transmission-of-aws)
- [PYSEC-2026-2401 - Scrapy is vulnerable to a denial of service (DoS) attack due to flaws in brotli decompression implementation](https://junglewise.ai/threats/cve-2025-6176-scrapy-denial-of-service-via-brotli-decompression-bomb)
- [PYSEC-2026-1907 - Scrapy decompression bomb vulnerability](https://junglewise.ai/threats/cve-2024-3572-scrapy-decompression-bomb-vulnerability)
- [Duplicate Advisory: Scrapy leaks the authorization header on same-domain but cross-origin redirects](https://junglewise.ai/threats/duplicate-advisory-scrapy-leaks-the-authorization-header-on-same-domain-8970f1ee)