CISA ADP Vulnrichment

Answer in brief

CVE-2026-80465 records a Unknown severity vulnerability in CISA ADP Vulnrichment. The current sources do not mark it as known exploited. The current feed maps Siemens/Mendix SAML (Mendix 10 compatible) (generic), Siemens/Mendix SAML (Mendix 11 compatible) (generic), Siemens/Mendix SAML (Mendix 9.24 compatible) (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 3, 2026Updated Sep 3, 2026Source checked Sep 3, 2026First seen by HOL Sep 3, 2026Material review Sep 3, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 3 mapped packages or products
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Siemens/Mendix SAML (Mendix 10 compatible) (generic), Siemens/Mendix SAML (Mendix 11 compatible) (generic), Siemens/Mendix SAML (Mendix 9.24 compatible) (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Siemens/Mendix SAML (Mendix 10 compatible)generic	>=0 <V4.2.3	V4.2.3
Siemens/Mendix SAML (Mendix 11 compatible)generic	>=0 <V4.2.3	V4.2.3
Siemens/Mendix SAML (Mendix 9.24 compatible)generic	>=0 <V3.6.27	V3.6.27

Recommended response

Check inventory. Check lockfiles and deployed manifests for Siemens/Mendix SAML (Mendix 10 compatible), Siemens/Mendix SAML (Mendix 11 compatible), Siemens/Mendix SAML (Mendix 9.24 compatible).
Review the reported fix. Update Siemens/Mendix SAML (Mendix 10 compatible) to V4.2.3; Siemens/Mendix SAML (Mendix 11 compatible) to V4.2.3; Siemens/Mendix SAML (Mendix 9.24 compatible) to V3.6.27 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 3, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 3, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 3, 2026

Sources and claim methodology

Source referencecert-portal.siemens.com

Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.