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.
Advisories
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Fixes
Solution
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Workaround
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References
History
Tue, 04 Aug 2026 15:30:00 +0000
| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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Tue, 04 Aug 2026 13:45:00 +0000
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| First Time appeared |
Eclipse
Eclipse milo |
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| 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 |
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| Metrics |
cvssV4_0
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Projects
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Status: PUBLISHED
Assigner: eclipse
Published:
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
No data.
No data.
OpenCVE Enrichment
Updated: 2026-08-04T13:30:10Z
Weaknesses