[release-v0.37.x] Security: Fix CVE-2026-42505 - update Go to 1.25.12 (crypto/tls ECH privacy leak) - #3067
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tekton-robot merged 1 commit intoJul 27, 2026
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- Update go directive from 1.25.11 to 1.25.12 - Fixes Encrypted Client Hello (ECH) privacy leak in crypto/tls - crypto/tls in Go 1.25.11 exposes cleartext SNI when invoking ECH Fixes: CVE-2026-42505 (GO-2026-5856) Co-Assisted-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Changes
Update Go directive from 1.25.11 to 1.25.12 to resolve CVE-2026-42505, a privacy leak in the
crypto/tlspackage affecting Encrypted Client Hello (ECH) support.CVE Details:
crypto/tlsin versions < 1.25.12 (on 1.25.x line)Description: When invoking Encrypted Client Hello (ECH), the TLS client may expose the cleartext server name (SNI) via the
crypto/tlspackage, undermining the ECH privacy guarantee.Fix Summary:
godirective ingo.modfrom1.25.11to1.25.12go mod tidy && go mod verify && go mod vendor— all passed ✅Test Results:
go mod verify: ✅ PASSgo mod vendor: ✅ PASSpkg/cmd/hub/cmd/*are unrelated to this changeBreaking Changes: None. Patch-level Go version bump.
Risk Assessment: Low — patch version bump (1.25.11 → 1.25.12) with no API changes.
Submitter Checklist
go mod tidy && go mod verify && go mod vendorRelease Notes
Jira Reference: CVE-2026-42505 / GO-2026-5856
Corresponds to main fix: #3065
Corresponds to v0.44.x fix: #3066