mpGabinet performs client-side authentication. An attacker with access to any application instance connected to the backend server can bypass the login verification process by manipulating the application binary and authenticate as an arbitrary user.

This issue affects mpGabinet version 23.12.19 and below.

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact total

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
BinSoft mpGabinet affected
Version Status Constraints
0 affected ≤ 23.12.19

No data.

No data.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://cert.pl/posts/2026/04/CVE-2026-40550/ cve-icon cve-icon
https://www.mpgabinet.pl/ cve-icon cve-icon
History

Tue, 28 Apr 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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

Tue, 28 Apr 2026 13:45:00 +0000

Type Values Removed Values Added
Description mpGabinet performs client-side authentication. An attacker with access to any application instance connected to the backend server can bypass the login verification process by manipulating the application binary and authenticate as an arbitrary user. This issue affects mpGabinet version 23.12.19 and below.
Title Use of Client-Side Authentication in mpGabinet
Weaknesses CWE-603
References
Metrics cvssV4_0

{'score': 8.4, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: CERT-PL

Published:

Updated: 2026-04-28T14:16:14.744Z

Reserved: 2026-04-14T09:44:32.552Z

Link: CVE-2026-40551

cve-icon Vulnrichment

Updated: 2026-04-28T14:16:10.502Z

cve-icon NVD

Status : Received

Published: 2026-04-28T14:16:13.510

Modified: 2026-04-28T14:16:13.510

Link: CVE-2026-40551

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses