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haproxy: HAProxy: HTTP Request Smuggling via HTTP/3 Multiplexer Desynchronization

🗓️ 27 Aug 2026 21:38:33Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 3 Views

Unauthenticated HTTP request smuggling in HAProxy via HTTP/3 desync bypassing frontend rules.

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Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Hardened Imagesanyaarch64haproxy3.0.27-0.1.hum1haproxy-3.0.27-0.1.hum1.aarch64.rpm
Red Hat Hardened Imagesanyx86_64haproxy3.0.27-0.1.hum1haproxy-3.0.27-0.1.hum1.x86_64.rpm

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21 Sep 2026 11:43Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.17.5
EPSS0.0077
SSVC
3