HIGH 7.5 NVD
CVE-2026-97031
Multiple ECH outer extension references are not permitted under RFC 9849; previously, a client could send a well-crafted packet that could trigger memory exhaus
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://go.dev/cl/847312
- https://go.dev/issue/81855
- https://groups.google.com/g/golang-announce/c/U2fTuyDJznI
- https://pkg.go.dev/vuln/GO-2026-6607
This high severity vulnerability with a CVSS score of 7.5 was published on 2026-10-08 via NVD.
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