High (7.5) in rocket.chat rocket.chat. EPSS 0.6% chance of exploitation in the next 30 days. Fixed in @rocket.chat/message-parser 0.31.30.
Rocket.Chat 6.12.0, 6.11.2, 6.10.5, 6.9.6, 6.8.6, 6.7.8, and earlier is vulnerable to denial of service (DoS). Attackers who craft messages with specific characters may crash the workspace due to an issue in the message parser.
Severity
CVSS 3.1
7.5 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
0.6% chance of exploitation in the next 30 days; higher than 48% of CVEs (scores of 2026-10-31)