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Vulnerability · Published Sep 10, 2026 · Assigned by TPLink

CVE-2026-84941Omada Controller XML External Entity (XXE) Injection in SAML IdP Metadata Parsing Leading to Arbitrary Local File Read

Medium 6.9

In plain English

A medium-severity XML external entity in OC200 v3 from TP-Link Systems Inc.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities).

Severity (CVSS 4.0)6.9Medium
Exploit odds (30 days)0.5%top 58.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

VendorProductVersions
TP-Link Systems Inc. Omada Software Controller (Windows) 0 – before 6.2.14.11
TP-Link Systems Inc. Omada Software Controller (Linux) 0 – before 6.2.14.11
TP-Link Systems Inc. OC2000 v1 0 – before 1.41.11 Build 20260711
TP-Link Systems Inc. OC2000 v2 0 – before 2.26.11 Build 20260711
TP-Link Systems Inc. OC200 v3 0 – before 3.3.11 Build 20260711
TP-Link Systems Inc. OC220 v1 0 – before 1.6.11 Build 20260711
TP-Link Systems Inc. OC220 v2 0 – before 2.5.11 Build 20260711
TP-Link Systems Inc. OC300 v1 0 – before 1.35.11 Build 20260711
TP-Link Systems Inc. OC400 v1 0 – before 1.13.11 Build 20260711

Weakness: CWE-611 · 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

References