- Optimized ZRANGESTORE conversion for large sorted sets, improving performance and resource usage.
- Stabilized module APIs and fixed multiple crashes/hangs (client change events, Lua scripts, sentinel, TLS, replication, eviction, client tracking).
- Security improvement: Sentinel no longer logs authentication passwords.
6.2.8
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Fixed multiple critical security vulnerabilities including CVE‑2026‑62356, heap out‑of‑bounds write, use‑after‑free, and TLS client certificate authentication bypass.
Fixed several critical CVE‑2026‑62356 vulnerabilities: buffer overflow, out‑of‑bounds access, use‑after‑free, and ACL bypass in commands like SORT, GEORADIUS, and XREADGROUP.
Fixed multiple heap OOB write and use‑after‑free vulnerabilities in CMSketch loading, TopK cleanup, and TLS pending data handling.