CVE-2026-51538

Description

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.

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Produits concernés

• Opener project opener

Scores CVSS

Faiblesses (CWE)

• CWE-284

Références

• https://gist.github.com/MrAlaskan/8156ca3acd6754a9f66efede0a1351f2 Third Party Advisory
• https://github.com/EIPStackGroup/OpENer/issues/565 ExploitIssue TrackingVendor Advisory
• https://github.com/EIPStackGroup/OpENer/issues/565 ExploitIssue TrackingVendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories