# CVE-2024-52804: PYSEC-2026-1975 - Tornado has an HTTP cookie parsing DoS vulnerability

Source: https://junglewise.ai/threats/cve-2024-52804-tornado-has-an-http-cookie-parsing-dos-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-07  
License: CC BY 4.0 with a link back

CVE-2024-52804 · Severity: low · CVSS 3.1 · Published 2026-07-07

Tornado has an HTTP cookie parsing DoS vulnerability

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

## Quick answers

**Is CVE-2024-52804 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2024-52804 being exploited in the wild.

**How severe is CVE-2024-52804?** Low severity, with a CVSS score of 3.1, published 7 July 2026.

**Which products and versions are affected?** tornado (PyPI) ECOSYSTEM:introduced=0,fixed=6.4.2.

**Is there a fix for CVE-2024-52804?** Yes. tornado (PyPI): upgrade to 6.4.2 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2024-52804?** Check whether you run tornado (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

- tornado (PyPI): upgrade to 6.4.2 or later

  ```sh
  pip install "tornado>=6.4.2"
  ```


## Affected products

- tornado (PyPI) ECOSYSTEM:introduced=0,fixed=6.4.2

## Identifiers

- CVE-2024-52804
- GHSA-8w49-h785-mj3c
- PYSEC-2026-1975

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- [Tornado CurlAsyncHTTPClient unbounded memory accumulation in decompression](https://junglewise.ai/threats/cve-2026-103262-tornado-curlasynchttpclient-enforces-no-response-size-limit)