Bug 2533932 (CVE-2023-54397) - CVE-2023-54397 python-tornado: Tornado before 6.3.3 HTTP Request Smuggling via Content-Length
Summary: CVE-2023-54397 python-tornado: Tornado before 6.3.3 HTTP Request Smuggling vi...
Keywords:
Status: NEW
Alias: CVE-2023-54397
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
urgent
urgent
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2542521
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-15 15:51 UTC by OSIDB Bzimport
Modified: 2026-09-28 15:17 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-09-15 15:51:41 UTC 
Tornado before 6.3.3 contains an HTTP request smuggling vulnerability due to improper parsing of Content-Length headers accepting non-standard characters. Attackers can send crafted HTTP requests with these characters to bypass proxy validation and smuggle requests when deployed behind certain proxies.
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