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TI-2026-65683 Aliases CVE-2026-103397GHSA-m7pc-whc6-fxc7

OpenSave before 2.4.0-beta.1 Authentication Bypass via Spoofed Relay Sender

Priority LOW 27CWE-290Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
Present
Impact type
Security bypass
Confidentiality · integrity · availability
Low · Low · Low
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-290.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00219 12th percentileScored 2026-11-07
Fix Fixed OpenSave (Liquid-co): 2.4.0-beta.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Liquid-coOpenSavebefore 2.4.0-beta.12.4.0-beta.1Patch availableCNA
  • OpenSave VendorLiquid-co Affected before 2.4.0-beta.1 Fixed in 2.4.0-beta.1 Patch available CNA

Remediation

  • Fix · CNA OpenSave (Liquid-co) Fixed in 2.4.0-beta.1

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-103397
  2. 2026-10-03 Alias added: GHSA-m7pc-whc6-fxc7

References

Patch 1

Advisory 1

Other 2

  • TI-2026-65684 OpenSave through 2.4.0 Arbitrary File Read and Write via Peer-Controlled Save Path CVSS 4.0HIGH 8.6

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences