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

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

Tornado has an HTTP cookie parsing DoS vulnerability

Technologies: tornado (PyPI). 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
    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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