CVE-2026-67219

RabbitMQ is affected by a vulnerability where the add_binding/3 function fails to impose an upper bound on the routing key integer weight N in the consistent-hash exchange plugin. Because validate_binding/2 only ensures N >= 1 , an attacker with write permissions on a consistent-hash exchange ...

CVE-2026-67219

RabbitMQ is a messaging and streaming broker. Prior to versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.0, addbinding/3 parses the routing key as an integer weight N and computes ring positions with lists:seqNextN0, NextN0 + N - 1. validatebinding/2 only checks N = 1 , no upper bound. The resulti...

CVE-2026-67219 RabbitMQ: Consistent-hash exchange unbounded weight

RabbitMQ is a messaging and streaming broker. Prior to versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.0, addbinding/3 parses the routing key as an integer weight N and computes ring positions with lists:seqNextN0, NextN0 + N - 1. validatebinding/2 only checks N = 1 , no upper bound. The resulti...