vulnerability
Red Hat: CVE-2024-52804: python-tornado: Tornado has HTTP cookie parsing DoS vulnerability (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:L/Au:N/C:N/I:N/A:C) | Nov 22, 2024 | Feb 10, 2025 | Mar 27, 2026 |
Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
Nov 22, 2024
Added
Feb 10, 2025
Modified
Mar 27, 2026
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.
Solutions
redhat-upgrade-pcsredhat-upgrade-pcs-snmpredhat-upgrade-python-tornado-debugsourceredhat-upgrade-python3-tornadoredhat-upgrade-python3-tornado-debuginfo
References
Rapid7 Labs
2026 Global Threat Landscape Report
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