CVE-2026-84941 PUBLISHED

Omada Controller XML External Entity (XXE) Injection in SAML IdP Metadata Parsing Leading to Arbitrary Local File Read

Assigner: TPLink
Reserved: 02.09.2026 Published: 10.09.2026 Updated: 10.09.2026

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.

Metrics

CVSS 4.0

CVSS Vector: 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 Score: 6.9

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	High
User Interaction	None

CVSS 4.0

Product Status

Vendor	TP-Link Systems Inc.
Product	Omada Software Controller (Windows)
Versions	Default: unaffected affected from 0 to 6.2.14.11 (excl.)

Vendor	TP-Link Systems Inc.
Product	Omada Software Controller (Linux)
Versions	Default: unaffected affected from 0 to 6.2.14.11 (excl.)

Vendor	TP-Link Systems Inc.
Product	OC2000 v1
Versions	Default: unaffected affected from 0 to 1.41.11 Build 20260711 (excl.)

Vendor	TP-Link Systems Inc.
Product	OC2000 v2
Versions	Default: unaffected affected from 0 to 2.26.11 Build 20260711 (excl.)

Vendor	TP-Link Systems Inc.
Product	OC200 v3
Versions	Default: unaffected affected from 0 to 3.3.11 Build 20260711 (excl.)

Vendor	TP-Link Systems Inc.
Product	OC220 v1
Versions	Default: unaffected affected from 0 to 1.6.11 Build 20260711 (excl.)

Vendor	TP-Link Systems Inc.
Product	OC220 v2
Versions	Default: unaffected affected from 0 to 2.5.11 Build 20260711 (excl.)

Vendor	TP-Link Systems Inc.
Product	OC300 v1
Versions	Default: unaffected affected from 0 to 1.35.11 Build 20260711 (excl.)

Vendor	TP-Link Systems Inc.
Product	OC400 v1
Versions	Default: unaffected affected from 0 to 1.13.11 Build 20260711 (excl.)

Credits

erikdejong finder
mattgsys finder
eslam moneer (tohtmosiii) finder

References

Problem Types

CWE-611 Improper restriction of XML external entity reference CWE

Impacts

CAPEC-221 Data Serialization External Entities Blowup