CVE-2019-11842 (sydent, synapse)

An issue was discovered in Matrix Sydent before 1.0.3 and Synapse before 0.99.3.1. Random number generation is mishandled, which makes it easier for attackers to predict a Sydent authentication token or a Synapse random ID.
Source: NIST
CVE-2019-11842 (sydent, synapse)