Most recent entries from all https://db.gcve.eu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Thu, 01 Oct 2026 21:26:17 +0000 GHSA-4mp9-239f-g9hg — Netty: WebSockets V07/V08 handshaker missing Connection/Upgrade validation https://db.gcve.eu/vuln/ghsa-4mp9-239f-g9hg <p><strong>Affected:</strong> Maven: io.netty:netty-codec-http</p> <p>## Summary An attacker can force WebSocket upgrade via the lax V07 (or V08) handshaker by sending `Sec-WebSocket-Version: 7` and omitting `Connection: Upgrade` / `Upgrade: websocket` headers, completing a protocol switch that a proxy would not recognize as an Upgrade request and enabling HTTP request smuggling / protocol-confusion attacks.</p> <p><strong>Affected:</strong> Maven: io.netty:netty-codec-http</p> <p>## Summary An attacker can force WebSocket upgrade via the lax V07 (or V08) handshaker by sending `Sec-WebSocket-Version: 7` and omitting `Connection: Upgrade` / `Upgrade: websocket` headers, completing a protocol switch that a proxy would not recognize as an Upgrade request and enabling HTTP request smuggling / protocol-confusion attacks.</p> https://db.gcve.eu/vuln/ghsa-4mp9-239f-g9hg