Detections
Analytics
CVE-2026-97031
high
Description
Multiple ECH outer extension references are not permitted under RFC 9849; previously, a client could send a well-crafted packet that could trigger memory exhaustion in the server process by specifying multiple references. We now reject these as malformed and curb the memory amplification vector as a result.
References
https://pkg.go.dev/vuln/GO-2026-6607