CVE-2026-51538 (GCVE-0-2026-51538)

Vulnerability from cvelistv5 – Published: 2026-07-13 00:00 – Updated: 2026-07-14 13:13
VLAI
Summary
EIPStackGroup OpENer 2.3.0 (commit 76b95cf) suffers from an Incorrect Access Control vulnerability in its handling of encapsulation sessions. When the server processes critical encapsulation commands, it verifies whether the provided session_handle exists in the global session list, but it fails to verify whether that handle belongs to the specific TCP connection issuing the request. Because there is no strong binding between a session handle and its originating socket, any attacker on the network can use a valid session handle created by another legitimate client to bypass access controls.
Severity
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-14 13:13 UTC
CWE
  • n/a
  • CWE-284 - Improper Access Control
Assigner
mitre CNA under the mitre root
CNA scorecard E 29/100 over 2271 records in the last 180 days details
References
Show details on NVD website
To clipboard 

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