CVE-2024-52804

State: PUBLISHED · Published: 2024-11-22 · Updated: 2025-11-03 · Assigner: GitHub_M

Description

Tornado is a Python web framework and asynchronous networking library. The algorithm used for parsing HTTP cookies in Tornado versions prior to 6.4.2 sometimes has quadratic complexity, leading to excessive CPU consumption when parsing maliciously-crafted cookie headers. This parsing occurs in the event loop thread and may block the processing of other requests. Version 6.4.2 fixes the issue.

CWE

CWE-400 — CWE-400: Uncontrolled Resource Consumption
CWE-770 — CWE-770: Allocation of Resources Without Limits or Throttling

Affected

tornadoweb / tornado — v=< 6.4.2 [affected]

CVSS

3.1 score=7.5 severity=HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

https://github.com/tornadoweb/tornado/security/advisories/GHSA-8w49-h785-mj3c x_refsource_CONFIRM
https://github.com/tornadoweb/tornado/commit/d5ba4a1695fbf7c6a3e54313262639b198291533 x_refsource_MISC
https://github.com/advisories/GHSA-7pwv-g7hj-39pr x_refsource_MISC

Source

cvelistV5-main/cves/2024/52xxx/CVE-2024-52804.json