CVE-2026-56845 PUBLISHED

Assigner: hackerone
Reserved: 23.06.2026 Published: 04.08.2026 Updated: 04.08.2026

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.

Metrics

CVSS 3.0

CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS Score: 7.5

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	None
User Interaction	None	Availability Impact	None

CVSS 3.0

Product Status

Vendor	Rocket.Chat
Product	Rocket.Chat
Versions	Default: unaffected affected from 0 to 8.2.0 (excl.) affected from 0 to 8.1.1 (excl.) affected from 0 to 8.0.2 (excl.) affected from 0 to 7.13.4 (excl.) affected from 0 to 7.12.5 (excl.) affected from 0 to 7.11.5 (excl.) affected from 0 to 7.10.8 (excl.)

Credits

s (howtoplay) finder

References

https://hackerone.com/reports/3514640

Problem Types

CWE-22 Path Traversal CWE