Vulnerability in Mendix SAML
AI summary
Written by an external AI model and may contain mistakes. Check the original description and references below before acting on it.
A vulnerability tracked as CVE-2026-80465 has been found in Mendix SAML.
Confidential information can be exposed externally. CVSS score: 8.7/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "Mendix SAML CVE-2026-80465" on the vendor's site.
CVE-2026-80465 (Mendix SAML) — CWE-347 / CVSS v3 8.7
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-347) exists in Mendix SAML.
Check the vendor advisory for the affected versions of Mendix SAML.
Severity: High (CVSS 8.7/10). Confidential information can be exposed externally.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1
Identify exposureidentify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで Mendix SAML を使っているサービスとバージョンを洗い出す。
-
2
Post-deployment verificationverify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
| Ecosystem | Package | Affected | Fixed |
|---|---|---|---|
| Siemens | Mendix SAML (Mendix 10 compatible) |
< V4.2.4 |
V4.2.4 |
| Siemens | Mendix SAML (Mendix 11 compatible) |
< V4.2.4 |
V4.2.4 |
| Siemens | Mendix SAML (Mendix 9.24 compatible) |
< V3.6.29 |
V3.6.29 |
Original description The description as published by the source.
A vulnerability has been identified in Mendix SAML (Mendix 10 compatible) (All versions < V4.2.3), Mendix SAML (Mendix 11 compatible) (All versions < V4.2.3), Mendix SAML (Mendix 9.24 compatible) (All versions < V3.6.27). 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.
Source: NIST National Vulnerability Database NVD GitHub Advisory
References
- web productcert@siemens.com
- web nvd.nist.gov
- web github.com