Description
A flaw was found in netty-codec-http. The WebSocket handshaker in this component fails to properly validate protocol version information during the WebSocket upgrade process. A remote attacker can exploit this vulnerability by manipulating the WebSocket handshake, leading to a bypass of security checks or the negotiation of unexpected protocol versions. This could potentially enable protocol-level attacks.
Analysis and contextual insights are available on OpenCVE Cloud.
Remediation
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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Advisories
| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-4mp9-239f-g9hg | Netty: WebSockets V07/V08 handshaker missing Connection/Upgrade validation |
References
History
Tue, 28 Jul 2026 00:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A flaw was found in netty-codec-http. The WebSocket handshaker in this component fails to properly validate protocol version information during the WebSocket upgrade process. A remote attacker can exploit this vulnerability by manipulating the WebSocket handshake, leading to a bypass of security checks or the negotiation of unexpected protocol versions. This could potentially enable protocol-level attacks. | |
| Title | io.netty/netty-codec-http: Netty: Protocol version confusion in netty-codec-http (WebSocket) | |
| Weaknesses | CWE-358 | |
| References |
| |
| Metrics |
threat_severity
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cvssV3_1
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Subscriptions
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OpenCVE Enrichment
No data.
Weaknesses
Github GHSA