🛡️ CVE-2026-63248 — milo

🟡 CVSS 6.5 — Medium ✅ No Known Exploit CWE-862 NVD
6.5
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity low, availability none.

Weakness class

CVE-2026-63248 is classified as CWE-862: Missing Authorization. No authorisation check is performed before carrying out a restricted action.

Affected software

CVE-2026-63248 is recorded against 1 package.

  • milo (from 0.6.0 up to 1.1.5)

Timeline and source

Published on 4 August 2026 and last revised on 5 August 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

github.com
gitlab.eclipse.org
gitlab.eclipse.org

Details

Severity MEDIUM
CVSS Score 6.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CWE CWE-862
Public Exploit ✅ No
Source NVD
Published 2026-08-04
Updated 2026-08-11
Modified 2026-08-05

Affected Packages

Software From version Fixed in
milo 0.6.0 1.1.5

Similar Threats

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