CVE-2020-8291: Rocket.chat

Medium severity, CVSS 6.1. EPSS: 0.6% chance of exploitation in the next 30 days.

A link preview rendering issue in Rocket.Chat versions before 3.9 could lead to potential XSS attacks.

Affected products

• Rocket.chat Rocket.chat: before 3.9.0 (fixed in 3.9.0)

Published 2021-10-18. Last modified 2026-06-17.