etcd: `tlsListener.acceptLoop` spawns unbounded handshake goroutines with no deadline

Date Jul 24, 2026
Type Vendor advisory
Signal High-risk advisory
Vendor / Product Go · go.etcd.io/etcd/v3
High-risk advisory

Summary

etcd: `tlsListener.acceptLoop` spawns unbounded handshake goroutines with no deadline

Why it matters

GitHub has published a reviewed security advisory for go.etcd.io/etcd/v3. Prioritize it with other application dependency updates.

Operator check

Check whether go.etcd.io/etcd/v3 is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. CVSS score: 8.7.

Sources

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.