PT-2026-120529 · Apache · Apache Brpc
CVE-2026-54426
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Published
2026-10-21
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Updated
2026-10-21
None
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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:
- Upgrade Apache bRPC to 1.18.0.
- 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.
Uncontrolled Recursion
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Weakness Enumeration
Related Identifiers
Affected Products
Apache Brpc