CVE-2026-56845

HIGH CVSS 3.0: 7.5 EPSS 0.40%
Updated Sep 09, 2026
Rocket.Chat
Parameter Value
CVSS 7.5 (HIGH)
Type CWE-22 (Path Traversal)
Vendor Rocket.Chat
Public PoC No

An unauthenticated path traversal (LFI) vulnerability exists under /custom-sounds/ when CustomSounds storage is configured to FileSystem. By including ../ sequences in the request path, an attacker can read arbitrary files outside the base directory.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption

CVSS Vector v3.0

Weakness Type (CWE)

Vulnerable Products

rocket.chat:rocket.chat