CVE-2026-72918: Rocket.Chat < 7.10.14, >= 8.0.0, < 8.0.8, >= 8.1.0, < 8.1.7, >= 8.2.0, < 8.2.7, >= 8.3.0, < 8.3.7, >= 8.4.0, < 8.4.5…

CVE-2026-72918. CVSS 3.1 base score 5.4 (MEDIUM, Vendor/CNA). EPSS 0.00225 (percentile 0.12501), scored 22-Oct-2026.

Affected technology

Rocket.Chat · < 7.10.14, >= 8.0.0, < 8.0.8, >= 8.1.0, < 8.1.7, >= 8.2.0, < 8.2.7, >= 8.3.0, < 8.3.7, >= 8.4.0, < 8.4.5, >= 8.5.0, < 8.5.2, >= 8.6.0, < 8.6.1
RocketChat

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · Low privileges required · User interaction required

What an attacker can do

An authenticated user can write arbitrary notification bodies because the sender is not checked, and the client-side UI can create an ephemeral fake message in another user's currently open chat. Vendor/CNA’s CVSS 3.1 assessment (base score 5.4/10) rates confidentiality and integrity impact as low; availability impact as none.

Published 24-Oct-2026 01:44 UTC

CWE: CWE-862
CCR priority: 21.7 /100 (P4)
CVSS 3.1: 5.4 /10 · CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N · Vendor/CNA
EPSS: 0.00225 · percentile 0.12501 · 2026-10-22
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-24 01:40:49.068977+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-72918.html