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Gunicorn HTTP Request/Response Smuggling vulnerability

🗓️ 20 Mar 2025 12:32:45Reported by GitHub Advisory DatabaseType 
github
 github🔗 github.com👁 50 Views

Gunicorn version 21.2.0 is vulnerable to HTTP request smuggling due to invalid header validation.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
IBM Security Bulletins		Security Bulletin: Multiple vulnerabilities in IBM Rapid Infrastructure Automation
28 May 202514:39
–ibm
IBM Security Bulletins		Security Bulletin: A denial-of-service attack, TE.CL request smuggling, a man-in-the-middle attack, and other vulnerabilities might affect IBM Storage Defender - Resiliency Service
16 Apr 202516:15
–ibm
IBM Security Bulletins		Security Bulletin: IBM Maximo Application Suite - Monitor Component is vulnerable to gunicorn-22.0.0-py3-none-any.whl CVE-2024-6827
14 May 202512:08
–ibm
IBM Security Bulletins		Security Bulletin: There are multiple vulnerabilities that can affect IBM Fusion HCI and IBM Fusion HCI for watsonx
31 May 202514:07
–ibm
IBM Security Bulletins		Security Bulletin: Multiple security vulnerabilities are addressed with IBM Process Mining 2.0.1
11 Apr 202514:35
–ibm
IBM Security Bulletins		Security Bulletin: Multiple vulnerabilities in IBM Business Automation Workflow Machine Learning Server are addressed with 24.0.0-IF006
6 Aug 202515:40
–ibm
IBM Security Bulletins		Security Bulletin: Vulnerability in gunicorn affects IBM Cloud Pak for Data System 1.0(CPDS 1.0)[CVE-2024-6827].
5 May 202518:38
–ibm
IBM Security Bulletins		Security Bulletin: IBM Maximo Application Suite - Monitor Component is vulnerable to gunicorn-22.0.0-py3-none-any.whl CVE-2024-6827
13 May 202507:21
–ibm
IBM Security Bulletins		Security Bulletin: IBM Security QRadar Network Threat Analytics app for IBM QRadar SIEM includes components with known vulnerabilities
22 Jul 202515:48
–ibm
IBM Security Bulletins		Security Bulletin: There are multiple vulnerabilities that can affect IBM Fusion
31 May 202514:06
–ibm
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Vulners
Node
gunicorngunicornRange<22.0.0pip

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29 Sep 2025 21:13Current
6.5Medium risk
Vulners AI Score6.5
CVSS 37.5
EPSS0.00029
SSVC
CWE-444
gunicorn vulnerabilityhttp request smugglingtransfer-encoding headercache poisoningdata exposuresession manipulationssrfxssdosdata integrity compromisesecurity bypassinformation leakagebusiness logic abuse.
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