High 8.4Published Apr 28, 2026

CVE-2026-40551Use of Client-Side Authentication in multiple BinSoft products

Updated under an hour ago (Oct 27, 2026, 10:23 PM ET)

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It affects BinSoft mpGabinet and 7 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for BinSoft mpGabinet

Exploited in the last 30 days

Multiple BinSoft products perform 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. The described issue affects all published versions. The vendor stated that this issue is a direct result of the architecture model in which the software is distributed, and that it will be mitigated with a corrected installation manual.

CVSS: 8.4 HIGH (v4.0, CNA)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
Weakness (CWE): CWE-603
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: CERT-PL
NVD analysis: Deferred
Record last updated: Sep 30, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

BinSoft mpGabinet binsoft:mpgabinet (from the name)	through 23.12.19	CNA record
BinSoft mpFirma binsoft:mpfirma (from the name)	through 26.4.9	CNA record
BinSoft mpFaktura binsoft:mpfaktura (from the name)	through 26.4.9	CNA record
BinSoft mpFirma ERP binsoft:mpfirma_erp (from the name)	through 26.4.9	CNA record
BinSoft mpSekretariat binsoft:mpsekretariat (from the name)	through 25.2.4	CNA record
BinSoft mpPOS binsoft:mppos (from the name)	through 25.2.4	CNA record
BinSoft mpCRM binsoft:mpcrm (from the name)	through 25.2.4	CNA record
BinSoft mpWarsztat binsoft:mpwarsztat (from the name)	through 20.4.28	CNA record

References

References

https://cert.pl/posts/2026/04/CVE-2026-40550/	third-party-advisory
https://www.binsoft.pl/produkty	product

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.