8.7
HighCVSS 3.1 · from siemens
CVE-2026-80465
A vulnerability has been identified in Mendix SAML (Mendix 10 compatible) (All versions < V4.2.4), Mendix SAML (Mendix 11 compatible) (All versions < V4.2.4), Mendix SAML (Mendix 9.24 compatible)…
Mendix SAML (Mendix 10 compatible) · CWE-347 · CWE-347AffectedMendix SAML (Mendix 10 compatible), Mendix SAML (Mendix 11 compatible), Mendix SAML (Mendix 9.24 compatible)
FixNo fix listed yet.
PublishedSep 3, 11:25 · siemens
ScoredSep 3 · 8.7 · siemens
Exploit code publicNone known · checked 21:18 UTC
ExploitedNone known · CISA KEV checked 22:07 UTC
What we know
No known exploitation. CISA KEV, checked 22:07 UTC.
No public exploit code known. Exploit-DB, Metasploit, Nuclei, checked 21:18 UTC.
An attacker only needs network access to the target. No login needed. CVSS: network, no privileges.
It only works under certain conditions, which makes it harder to pull off. CVSS: high attack complexity.
A successful attack can read data and change data. CVSS impact.
A successful attack gives full control of the affected system. CISA: technical impact total.
Description
A vulnerability has been identified in Mendix SAML (Mendix 10 compatible) (All versions < V4.2.4), Mendix SAML (Mendix 11 compatible) (All versions < V4.2.4), Mendix SAML (Mendix 9.24 compatible) (All versions < V3.6.29). Affected versions of the module do not properly validate the SAML response signature. This could allow unauthenticated remote attackers to hijack an account (session) in specific SSO configurations.
From siemens
Affected and fixed versions
ProductAffectedFixed inMendix SAML (Mendix 10 compatible)before V4.2.4–Mendix SAML (Mendix 11 compatible)before V4.2.4–Mendix SAML (Mendix 9.24 compatible)before V3.6.29–
Exploit code
Exploit-DBnone knownMetasploitnone knownNucleinone known