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h2 allows HTTP Request Smuggling due to illegal characters in headers

🗓️ 25 Aug 2025 20:44:43Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 6 Views

HTTP/2 request split flaw enables CRLF header injection during downgrade, bypassing controls.

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03 Nov 2025 21:34Current
6.5Medium risk
Vulners AI Score6.5
CVSS 46.9
EPSS0.00104
SSVC
6