CVE-2023-39322

QUIC connections do not set an upper bound on the amount of data buffered when reading post-handshake messages, allowing a malicious QUIC connection to cause unbounded memory growth. With fix, connections now consistently reject messages larger than 65KiB in size.

• CWE-770

• https://go.dev/cl/523039Patch
• https://go.dev/issue/62266Issue Tracking
• https://groups.google.com/g/golang-dev/c/2C5vbR-UNkI/m/L1hdrPhfBAAJMailing List, Release Notes
• https://pkg.go.dev/vuln/GO-2023-2045Vendor Advisory
• https://security.gentoo.org/glsa/202311-09
• https://security.netapp.com/advisory/ntap-20231020-0004/Third Party Advisory
• https://go.dev/cl/523039Patch
• https://go.dev/issue/62266Issue Tracking
• https://groups.google.com/g/golang-dev/c/2C5vbR-UNkI/m/L1hdrPhfBAAJMailing List, Release Notes
• https://pkg.go.dev/vuln/GO-2023-2045Vendor Advisory
• https://security.gentoo.org/glsa/202311-09
• https://security.netapp.com/advisory/ntap-20231020-0004/Third Party Advisory

Published

Sep 8, 2023

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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