Omada Controller XML External Entity (XXE) Injection in SAML IdP Metadata Parsing Leading to Arbitrary Local File Read
Summary
| CVE | CVE-2026-84941 |
|---|---|
| State | PUBLISHED |
| Assigner | TPLink |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-09-11 00:19:57 UTC |
| Updated | 2026-09-11 00:19:57 UTC |
| Description | An information disclosure vulnerability in the SAML Single Sign-On (SSO) functionality of Omada Controller allows an authenticated user with SAML configuration privileges to access sensitive information due to insufficient validation of user-supplied SAML metadata. Successful exploitation could result in unauthorized disclosure of sensitive information. |
Risk And Classification
Primary CVSS: v4.0 6.9 MEDIUM from f23511db-6c3e-4e32-a477-6aa17d310630
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Problem Types: CWE-611 | CWE-611 CWE-611 Improper restriction of XML external entity reference
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | f23511db-6c3e-4e32-a477-6aa17d310630 | Secondary | 6.9 | MEDIUM | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/C... |
| 4.0 | CNA | CVSS | 6.9 | MEDIUM | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N |
CVSS v4.0 Breakdown
Attack Vector
NetworkAttack Complexity
LowAttack Requirements
NonePrivileges Required
HighUser Interaction
NoneConfidentiality
HighIntegrity
NoneAvailability
NoneSub Conf.
NoneSub Integrity
NoneSub Availability
NoneCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | TP-Link Systems Inc. | Omada Software Controller Windows | affected 6.2.14.11 custom | Omada Controller |
| CNA | TP-Link Systems Inc. | Omada Software Controller Linux | affected 6.2.14.11 custom | Omada Controller |
| CNA | TP-Link Systems Inc. | OC2000 V1 | affected 1.41.11 Build 20260711 custom | Omada Controller |
| CNA | TP-Link Systems Inc. | OC2000 V2 | affected 2.26.11 Build 20260711 custom | Omada Controller |
| CNA | TP-Link Systems Inc. | OC200 V3 | affected 3.3.11 Build 20260711 custom | Omada Controller |
| CNA | TP-Link Systems Inc. | OC220 V1 | affected 1.6.11 Build 20260711 custom | Omada Controller |
| CNA | TP-Link Systems Inc. | OC220 V2 | affected 2.5.11 Build 20260711 custom | Omada Controller |
| CNA | TP-Link Systems Inc. | OC300 V1 | affected 1.35.11 Build 20260711 custom | Omada Controller |
| CNA | TP-Link Systems Inc. | OC400 V1 | affected 1.13.11 Build 20260711 custom | Omada Controller |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| support.omadanetworks.com/en/document/133722 | f23511db-6c3e-4e32-a477-6aa17d310630 | support.omadanetworks.com | |
| www.omadanetworks.com/us/support/download | f23511db-6c3e-4e32-a477-6aa17d310630 | www.omadanetworks.com | |
| support.omadanetworks.com/us/download/software/omada-controller | f23511db-6c3e-4e32-a477-6aa17d310630 | support.omadanetworks.com | |
| support.omadanetworks.com/en/download/software/omada-controller | f23511db-6c3e-4e32-a477-6aa17d310630 | support.omadanetworks.com | |
| www.omadanetworks.com/en/support/download | f23511db-6c3e-4e32-a477-6aa17d310630 | www.omadanetworks.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: erikdejong (en)
CNA: mattgsys (en)
CNA: eslam moneer (tohtmosiii) (en)
There are currently no legacy QID mappings associated with this CVE.