{"id":"CVE-2026-58064","title":"Apache bRPC: Denial of Service via Unbounded Redis Inline Command Allocation","summary":"The Redis protocol implementation in Apache bRPC allowed inline command parsing to allocate and copy the full connection buffer before a complete CRLF-terminated command was available. A remote attacker with access to a Redis-protocol bR…","severity":"none","cwe":["CWE-770"],"vendor":"Apache Software Foundation","product":"apache/brpc","affected":["apache/brpc < 1.18.0"],"published":"2026-10-21","updated":"2026-10-21","sourceUpdated":"2026-10-21T11:41:13.666Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-58064","references":[{"url":"https://lists.apache.org/thread/2pf15ojj0vr7rtx95677kgtl1mx3gdgb"}],"tags":["cve.org"],"ingestedAt":"2026-10-21T12:48:53.765Z","slug":"CVE-2026-58064","body":"## Overview\n\nThe Redis protocol implementation in Apache bRPC allowed inline command parsing to allocate and copy the full connection buffer before a complete CRLF-terminated command was available. A remote attacker with access to a Redis-protocol bRPC service could send long inline inputs without a terminating CRLF to increase memory usage and CPU copy overhead, potentially causing denial of service.\n\n\nRoot Cause:\nThe Redis inline command parser allocated memory based on the current input buffer size and copied the entire buffer before determining the current inline command boundary. The existing redis_max_allocation_size limit was applied to RESP bulk strings and arrays, but not effectively to the inline command path before allocation.\n\n\nAffected Scenarios:\nUse Apache bRPC server with Redis protocol enabled and reachable by untrusted clients.\n\n\nHow to Fix:\n1. Upgrade Apache bRPC to version 1.18.0, which fixes this issue.\n2. Apply the patch from PR  https://github.com/apache/brpc/pull/3363 .\n\n\nNote:\nThe fix applies redis_max_allocation_size to Redis inline command lines and scans for CRLF before allocating parser arena memory. Inline command lines exceeding this limit are rejected.\n\n## Affected\n\n- `apache/brpc < 1.18.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}