{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-40551 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-40551 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-40551 is a high-severity authentication bypass vulnerability in BinSoft mpCRM, published on 28 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-40551 and fix it if it is affected.\n\nWhat it is: CVE-2026-40551 is a high-severity authentication bypass vulnerability in BinSoft mpCRM, published on 28 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-40551 in the wild and no public exploit code.\n\nAffected product: BinSoft mpCRM. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-40551/ (Markdown: https://insights.sbomify.com/CVE-2026-40551/index.md)","id":"CVE-2026-40551","markdown":"https://insights.sbomify.com/CVE-2026-40551/index.md","name":"CVE-2026-40551","record":{"aliases":["GHSA-4r5q-f55r-9frx"],"analysis":{"component_type":"desktop_application","fix_type":"workaround","impacts":["account_takeover","security_bypass"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"BinSoft business software","requires_auth":"low_privilege","summary":"Attackers can bypass login verification by manipulating the application binary to authenticate as arbitrary users in BinSoft products.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"CERT-PL","cpe":[],"cvss":{"score":8.4,"severity":"high","source":"cna","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","version":"4.0"},"cwes":[{"id":"CWE-603","name":"Use of Client-Side Authentication"}],"description":"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.  \n\nThe 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.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Use of Client-Side Authentication in multiple BinSoft products","id":"CVE-2026-40551","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Remote Code Execution in multiple BinSoft products","id":"CVE-2026-40552"},"packages":[],"prev":{"headline":"Privilege Escalation in multiple BinSoft products","id":"CVE-2026-40550"},"products":["mpCRM","mpFaktura","mpFirma","mpFirma ERP","mpGabinet","mpPOS","mpSekretariat","mpWarsztat"],"published":"2026-04-28","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-09-30","vendors":["BinSoft"]},"summary":"Attackers can bypass login verification by manipulating the application binary to authenticate as arbitrary users in BinSoft products.","url":"https://insights.sbomify.com/CVE-2026-40551/"}