Medium severity6.5NVD Advisory· Published Aug 4, 2026· Updated Aug 5, 2026
CVE-2026-63248
CVE-2026-63248
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.
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Affected products
2Patches
Vulnerability mechanics
References
3- github.com/eclipse-milo/milo/commit/a5dae1be0657d2b4fcb66e63f377c1dc36069e2anvdPatch
- gitlab.eclipse.org/security/cve-assignment/-/work_items/181nvdIssue TrackingPatchVendor Advisory
- gitlab.eclipse.org/security/vulnerability-reports/-/work_items/598nvdIssue TrackingVendor Advisory
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