EUVD-2026-75890
GHSA-8qr5-rrw5-mq36
Severity by source
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
Network-accessible SAML config endpoint requires high privileges (admin); confidentiality-only impact with no scope change aligns with file-read XXE.
Primary rating from Vendor (TPLink).
CVSS VectorVendor: TPLink
Lifecycle Timeline
2DescriptionCVE.org
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.
AnalysisAI
XML External Entity (XXE) injection in TP-Link Omada Controller's SAML SSO metadata parsing allows an authenticated user with SAML configuration privileges to read arbitrary files from the server, resulting in high-confidentiality information disclosure. The vulnerability arises because the controller does not disable external entity resolution when parsing user-supplied SAML metadata XML, enabling server-side file exfiltration. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires: (1) an authenticated user account on the Omada Controller with SAML configuration privileges, which is typically an administrative role; (2) the SAML SSO feature must be accessible in the controller interface - it does not require SAML to be fully operational end-to-end, only that the configuration endpoint accepts metadata uploads; (3) network access to the Omada Controller management interface over the network (AV:N). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N) scores 6.9, accurately reflecting the PR:H requirement that constrains the realistic attacker population to users with SAML configuration privileges - typically restricted to network administrators. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Apply the vendor-released patch available from the Omada Networks support portal at https://support.omadanetworks.com/en/download/software/omada-controller and https://www.omadanetworks.com/en/support/download/. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same technique Information Disclosure
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External POC / Exploit Code
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