Bug 2453582 (CVE-2026-34441) - CVE-2026-34441 cpp-httplib: cpp-httplib: HTTP Request Smuggling via unconsumed GET request body
Summary: CVE-2026-34441 cpp-httplib: cpp-httplib: HTTP Request Smuggling via unconsume...
Keywords:
Status: NEW
Alias: CVE-2026-34441
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
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Whiteboard:
Depends On: 2453747 2453748 2453749
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-03-31 22:02 UTC by OSIDB Bzimport
Modified: 2026-04-01 06:48 UTC (History)
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Description OSIDB Bzimport 2026-03-31 22:02:28 UTC 
cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to version 0.40.0, cpp-httplib is vulnerable to HTTP Request Smuggling. The server's static file handler serves GET responses without consuming the request body. On HTTP/1.1 keep-alive connections, the unread body bytes remain on the TCP stream and are interpreted as the start of a new HTTP request. An attacker can embed an arbitrary HTTP request inside the body of a GET request, which the server processes as a separate request. This issue has been patched in version 0.40.0.
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