CVE-2026-63248CWE-862broken-access-control

CVE-2026-63248

Medium · published August 4, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
16.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00260 · 16.8th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-08-04T17:18Z
Affected products (1)
ProductVersionsFixed in
eclipse/milo≥ 0.6.0, < 1.1.51.1.5
References (3)
https://github.com/eclipse-milo/milo/commit/a5dae1be0657d2b4fcb66e63f377c1dc36069e2a · [email protected]https://gitlab.eclipse.org/security/cve-assignment/-/work_items/181 · [email protected]https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/598 · [email protected]
EPSS history
Timeline
  • 04 AUG 12:07Z
    In Eclipse Milo versions 0.6.0 through 1.1.4, OPC UA server diagnostics nodes do not enforce access authorization
    cvelistv5