CVE-2018-16515: Debian Linux
High severity, CVSS 8.8. EPSS: 1.5% chance of exploitation in the next 30 days.
Matrix Synapse before 0.33.3.1 allows remote attackers to spoof events and possibly have unspecified other impacts by leveraging improper transaction and event signature validation.
Affected products
Published 2018-09-18. Last modified 2026-06-17.