# CVE-2022-0577: Scrapy cookie leakage across redirect domains

Source: https://junglewise.ai/threats/cve-2022-0577-scrapy-cookie-leakage-across-redirect-domains  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2022-03-01. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2022-0577 · Severity: medium · CVSS 6.5 · Published 2022-03-01

Scrapy is a popular web scraping framework. When a web server redirects a request to a different domain, Scrapy was incorrectly carrying forward manually-defined cookies to the new domain. This could expose sensitive authentication tokens or session cookies to unintended third-party websites, potentially allowing attackers to hijack accounts or scrape data they shouldn't access.

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

## Quick answers

**Is CVE-2022-0577 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2022-0577 being exploited in the wild.

**How severe is CVE-2022-0577?** Medium severity, with a CVSS score of 6.5, published 1 March 2022.

**Which products and versions are affected?** scrapy (PyPI) ECOSYSTEM:introduced=0,fixed=1.8.2, GIT:introduced=0,fixed=8ce01b3b76d4634f55067d6cfdf632ec70ba304a|ECOSYSTEM:introduced=0,fixed=2.6.1.

**Is there a fix for CVE-2022-0577?** Yes. scrapy (PyPI): upgrade to 1.8.2, 2.6.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2022-0577 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2022-0577?** 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 1.8.2, 2.6.1 or later

  ```sh
  pip install "scrapy>=2.6.1"
  ```


## Technical details

The vulnerability is an authorization and information disclosure issue in Scrapy's request handling. When a Request object with manually-defined cookies receives a redirect (HTTP 301/302/etc.), the cookie middleware fails to restrict those cookies to their intended domain and instead passes them to the redirect target domain regardless of domain mismatch. An attacker can trick a scraper into following a redirect to an attacker-controlled domain and capture the leaked cookies. The issue affects Scrapy versions before 2.6.0 (and 1.8.2 for the 1.x branch). Patches reset cookies on redirect and drop manually-defined cookies if domain names do not match.

## Affected products

- Scrapy Scrapy before 2.6.0 (and before 1.8.2 in the 1.x branch)

## Identifiers

- CVE-2022-0577
- GHSA-cjvr-mfj7-j4j8
- PYSEC-2022-159

## Timeline

- 2022-03-01: disclosed
- 2022: patched: Version 2.6.0 and 1.8.2 released with fix

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- [PYSEC-2026-1907 - Scrapy decompression bomb vulnerability](https://junglewise.ai/threats/cve-2024-3572-scrapy-decompression-bomb-vulnerability)
- [PYSEC-2026-1908 - Scrapy authorization header leakage on cross-domain redirect](https://junglewise.ai/threats/cve-2024-3574-scrapy-authorization-header-leakage-on-cross-domain-redirect)