PT-2026-67520
CVE-2026-69243
·
Published
2026-06-30
·
Updated
2026-09-18
Description by
CVSS 4.0
6.3
MediumMetricsAV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Name of the Vulnerable Software and Affected Versions
AIOHTTP versions prior to 3.14.2
Description
The HTTP parsers in the server-side component are susceptible to request smuggling during WebSocket upgrades. This occurs when a WebSocket upgrade request contains a body, causing the parser to switch protocols before the entire body is received. Consequently, trailing bytes are processed as upgraded-protocol or pipelined data instead of standard HTTP body data.
Recommendations
Update to version 3.14.2.
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