CVE-2026-63248

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.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/eclipse-milo/milo/commit/a5dae1be0657d2b4fcb66e63f377c1dc36069e2a	Patch
https://gitlab.eclipse.org/security/cve-assignment/-/work_items/181	Issue Tracking Patch Vendor Advisory
https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/598	Issue Tracking Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:eclipse:milo:*:*:*:*:*:*:*:*

History

05 Aug 2026, 18:55

Type	Values Removed	Values Added
First Time		Eclipse milo Eclipse
References	~~() https://github.com/eclipse-milo/milo/commit/a5dae1be0657d2b4fcb66e63f377c1dc36069e2a -~~	() https://github.com/eclipse-milo/milo/commit/a5dae1be0657d2b4fcb66e63f377c1dc36069e2a - Patch
References	~~() https://gitlab.eclipse.org/security/cve-assignment/-/work_items/181 -~~	() https://gitlab.eclipse.org/security/cve-assignment/-/work_items/181 - Issue Tracking, Patch, Vendor Advisory
References	~~() https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/598 -~~	() https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/598 - Issue Tracking, Vendor Advisory
CPE		cpe:2.3:a:eclipse:milo::::::::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 6.5

04 Aug 2026, 13:18

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-08-04 13:18

Updated : 2026-08-05 18:55

NVD link : CVE-2026-63248

Mitre link : CVE-2026-63248

CVE.ORG link : CVE-2026-63248

JSON object : View

Products Affected

eclipse

milo

CWE

CWE-862

Missing Authorization

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