In Eclipse Milo versions 0.6.0 through 1.1.4, OPC UA server diagnostics nodes do not enforce access authorization. An anonymous client can enable diagnostics over a None/None endpoint without a certificate; with a trusted client application certificate over SignAndEncrypt, it can read security diagnostics for other active sessions, exposing usernames, login history, authentication mechanisms, security modes and policies, and public client certificates.
Metrics
Affected Vendors & Products
References
History
Tue, 04 Aug 2026 20:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Missing Authorization on OPC UA Server Diagnostics in Eclipse Milo |
Tue, 04 Aug 2026 15:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Tue, 04 Aug 2026 13:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Eclipse
Eclipse milo |
|
| Vendors & Products |
Eclipse
Eclipse milo |
Tue, 04 Aug 2026 12:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | In Eclipse Milo versions 0.6.0 through 1.1.4, OPC UA server diagnostics nodes do not enforce access authorization. An anonymous client can enable diagnostics over a None/None endpoint without a certificate; with a trusted client application certificate over SignAndEncrypt, it can read security diagnostics for other active sessions, exposing usernames, login history, authentication mechanisms, security modes and policies, and public client certificates. | |
| Weaknesses | CWE-862 | |
| References |
| |
| Metrics |
cvssV4_0
|
Status: PUBLISHED
Assigner: eclipse
Published: 2026-08-04T12:07:43.820Z
Updated: 2026-08-04T15:02:13.054Z
Reserved: 2026-07-16T13:58:02.238Z
Link: CVE-2026-63248
Updated: 2026-08-04T14:28:15.989Z
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