{"api_version":"1","generated_at":"2026-04-25T12:07:05+00:00","cve":"CVE-2023-46239","urls":{"html":"https://cve.report/CVE-2023-46239","api":"https://cve.report/api/cve/CVE-2023-46239.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2023-46239","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-46239"},"summary":{"title":"CVE-2023-46239","description":"quic-go is an implementation of the QUIC protocol in Go. Starting in version 0.37.0 and prior to version 0.37.3, by serializing an ACK frame after the CRYTPO that allows a node to complete the handshake, a remote node could trigger a nil pointer dereference (leading to a panic) when the node attempted to drop the Handshake packet number space. An attacker can bring down a quic-go node with very minimal effort. Completing the QUIC handshake only requires sending and receiving a few packets. Version 0.37.3 contains a patch. 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