PT-2026-29610
CVE-2026-34525
·
Published
2026-03-15
·
Updated
2026-10-06
Description by
CVSS 4.0
6.9
MediumMetricsAV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/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 3.13.4
Description
Multiple Host headers were permitted in AIOHTTP, potentially allowing a reverse proxy's security rules to be bypassed. This could lead to a request being processed by AIOHTTP in a privileged sub application when using
Application.add domain() if the proxy and AIOHTTP process different host names.Recommendations
Update to AIOHTTP version 3.13.4 or later.
Exploitability
Exploit
Fix
Impacts
Researchers
Vendors
Affected products
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