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PT-2026-63546

🗓️ 22 Jul 2026 00:00:00Reported by Positive TechnologiesType 
ptsecurity
 ptsecurity🔗 dbu.gs👁 30 Views

An attacker can force WebSocket upgrade with Sec-WebSocket-Version seven and missing Upgrade headers, enabling request smuggling.

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29 Sep 2026 00:00Current
6.4Medium risk
Vulners AI Score6.4
CVSS 3.15.3 - 9.8
CVSS 46.3
EPSS0.00439
SSVC
websocket upgradewebsocket version sevenmissing upgrade headershttp request smugglingprotocol confusion
30