Predis: Redis command injection and denial of service via CRLF smuggling in pipelined commands on aggregate connections

Summary An improper CRLF neutralization flaw in Predis' pipeline handling on aggregate connections lets an unauthenticated attacker who can influence any pipelined argument — a value or a key, e.g. a URL slug used as a cache key — smuggle arbitrary Redis commands into the connection. - On cluster...

CVE-2026-84372

Predis , a PHP client for Redis and Valkey, is affected by a critical (CVSS 9.8) Redis command injection and denial of service vulnerability in versions 3.0.0-RC1 through 3.3.0 . The root cause lies in AbstractAggregateConnection::write(), which reparses an already serialized RESP buffer using ex...