OpenSave before 2.4.0-beta.1 fails to validate sender identity in WAN relay requests, allowing unpaired room members to impersonate paired devices by spoofing the RelayMessage From field. Attackers who know the room code can join, read paired peer identifiers from announcements, and send forged requests to access protected sync routes including save data, snapshots, and file operations.
History

Fri, 02 Oct 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 01 Oct 2026 16:00:00 +0000

Type Values Removed Values Added
First Time appeared Liquid-co
Liquid-co opensave
Vendors & Products Liquid-co
Liquid-co opensave

Wed, 30 Sep 2026 15:00:00 +0000

Type Values Removed Values Added
Description OpenSave before 2.4.0-beta.1 fails to validate sender identity in WAN relay requests, allowing unpaired room members to impersonate paired devices by spoofing the RelayMessage From field. Attackers who know the room code can join, read paired peer identifiers from announcements, and send forged requests to access protected sync routes including save data, snapshots, and file operations.
Title OpenSave before 2.4.0-beta.1 Authentication Bypass via Spoofed Relay Sender
Weaknesses CWE-290
References
Metrics cvssV3_1

{'score': 5.6, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L'}

cvssV4_0

{'score': 6.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-09-30T14:48:57.063Z

Updated: 2026-10-02T16:19:36.553Z

Reserved: 2026-09-30T14:28:17.826Z

Link: CVE-2026-103397

cve-icon Vulnrichment

Updated: 2026-10-02T16:19:32.532Z

cve-icon NVD

Status : Deferred

Published: 2026-09-30T15:22:28.530

Modified: 2026-10-02T17:17:02.423

Link: CVE-2026-103397

cve-icon Redhat

No data.