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The vulnerability of the _parseparam function in the httputil.py component of the Python Tornado web framework, which allows a hacker to cause a denial-of-service attack.

🗓️ 12 Mar 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec
 bdu_fstec🔗 bdu.fstec.ru👁 2 Views

Tornado's httputil _parseparam has uncontrolled resource use that can cause denial of service.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
IBM Security Bulletins		Security Bulletin: IBM Maximo Application Suite - Monitor Component uses tornado-6.5-cp39-abi3-manylinux_2_5_x86_64.manylinux1_x86_64.manylinux_2_17_x86_64.manylinux2014_x86_64.whl which is vulnerable to CVE-2025-67724, CVE-2025-67725, CVE-2025-67726.
27 Feb 202611:35
–ibm
IBM Security Bulletins		Security Bulletin: Vulnerabilities exists in IBM Netezza Software
19 Jun 202617:23
–ibm
IBM Security Bulletins		Security Bulletin: Multiple vulnerabilities affect Data Virtualization on IBM Software Hub (April 2026 - Part 1 of 2)
1 May 202605:38
–ibm
IBM Security Bulletins		Security Bulletin: IBM Verify Identity Protection Self-Hosted is affected by multiple vulnerabilities
19 Jun 202606:21
–ibm
Tenable Nessus		Amazon Linux 2023 : python3-tornado (ALAS2023-2025-1338)
8 Jan 202600:00
–nessus
Tenable Nessus		Amazon Linux 2023 : python3.13-tornado (ALAS2023-2026-1528)
1 Apr 202600:00
–nessus
Tenable Nessus		Amazon Linux 2 : python-tornado, --advisory ALAS2-2025-3106 (ALAS-2025-3106)
5 Jan 202600:00
–nessus
Tenable Nessus		Amazon Linux 2 : python3-tornado, --advisory ALAS2-2025-3109 (ALAS-2025-3109)
5 Jan 202600:00
–nessus
Tenable Nessus		Alibaba Cloud Linux 3 : 0020: pcs (ALINUX3-SA-2026:0020)
2 Feb 202600:00
–nessus
Tenable Nessus		AlmaLinux 8 : pcs (ALSA-2026:0930)
24 Jan 202600:00
–nessus
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Vulners
Node
tornado_authorspython_tornadoRange<6.5.3

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12 Mar 2026 00:00Current
7.2High risk
Vulners AI Score7.2
CVSS 37.5
CVSS 27.8
EPSS0.00371
tornado httputilparseparam vulnerabilitydenial of serviceresource consumption
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