MEDIUM5.3
GO-2026-5856
Invoking Encrypted Client Hello privacy leak in crypto/tls
Quick fix
GO-2026-5856 — stdlib: upgrade to the fixed version with the command below.
go get stdlib@v1.25.12Details
Handshakes which used Encrypted Client Hello could be de-anonymized by a passive network observer due to a disclosure of pre-shared key identities in the unencrypted client hello.
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