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Affected Component
Analysis
haproxy
Exploitable
Name
CVE-2026-33555
Description
An issue was discovered in HAProxy before 3.3.6. The HTTP/3 parser does not check that the received body length matches a previously announced content-length when the stream is closed via a frame with an empty payload. This can cause desynchronization issues with the backend server and could be used for request smuggling. The earliest affected version is 2.6.
CWEs
Published Date
Updated Date
Workaround
-
Advisories
https://www.haproxy.orgProduct
Analysis#
Vulnerability Ratings#
4
CVSSv31
5.8
CVSSv31
NaN
other