CVE-2026-81531 PUBLISHED

Unauthenticated Account Information Disclosure in Multiple Omada Controllers

Assigner: TPLink
Reserved: 26.08.2026 Published: 08.09.2026 Updated: 08.09.2026

An information disclosure vulnerability has been identified in Omada Controller.  An API endpoint intended for Controller initialization remains accessible after completion and may disclose account-related information to unauthenticated remote users. 

Successful exploitation may allow an attacker to remote query the affected endpoint that may facilitate user enumeration and subsequent attacks targeting administrative accounts.

Metrics

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
CVSS Score: 6.9

Product Status

Vendor TP-Link System Inc.
Product Omada Software Controller
Versions Default: unaffected
  • affected from 0 to 6.3.0.44 (excl.)
Vendor TP-Link Systems Inc.
Product OC200 V1
Versions Default: unaffected
  • affected from 0 to (UN)_V1_1.42.10 Build 20260825 (excl.)
Vendor TP Link Systems Inc.
Product OC200 v2
Versions Default: unaffected
  • affected from 0 to (UN)_V2_2.27.10 Build 20260825 (excl.)
Vendor TP-Link Systems Inc
Product OC200 v3
Versions Default: unaffected
  • affected from 0 to (UN)_V3_3.4.10 Build 20260825 (excl.)
Vendor TP-Link Systems Inc.
Product OC220 v1
Versions Default: unaffected
  • affected from 0 to (UN)_V1_1.7.10 Build 20260825 (excl.)
Vendor TP-Link Systems Inc
Product OC220 v2
Versions Default: unaffected
  • affected from 0 to (UN)_V2_2.6.10 Build 20260825 (excl.)
Vendor TP-Link Systems Inc.
Product OC300 v1
Versions Default: unaffected
  • affected from 0 to (UN)_V1_1.36.10 Build 20260825 (excl.)
Vendor TP-Link Systems Inc.
Product OC400 v1
Versions Default: unaffected
  • affected from 0 to (UN)_V1_1.14.10 Build 20260825 (excl.)

Credits

  • Joshua Chan, GitHub: https://github.com/popcorn94, Twitter: popc0rn94 finder

References

Problem Types

  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor CWE

Impacts

  • CAPEC-118 Collect & Analyze Information