CVE-2026-54426
CVE-2026-54426 · Apache bRPC: Stack Exhaustion via Unbounded Recursion in Redis Reply Parser
This page contains facts from public vulnerability sources. Check the original advisory before updating.
Uncontrolled recursion in the Redis reply parser in Apache bRPC < 1.18.0 allows a remote Redis server peer to crash a bRPC Redis client process by returning a deeply nested RESP array reply. The parser recursed once for each nested array level without enforcing a depth limit. The fix adds a configurable Redis reply depth limit with default value 128 and rejects replies exceeding that limit. Affected Scenarios: Applications using bRPC as a Redis client with ChannelOptions.protocol="redis" and receiving replies from an untrusted or faulty Redis server peer. How to Fix: 1. Upgrade Apache bRPC to 1.18.0. 2. Apply the patch from PR https://github.com/apache/brpc/pull/3344 . Note: After applying the fix, Redis replies with array nesting deeper than redis_max_reply_depth are rejected.
EPSS 0.2% · Fix available
- Published
- Updated
Affected products and versions
apache brpc
- Versions
- ≥ 0, < 1.18.0: Affected (semver)
Update to 1.18.0