HIGH

CVE-2026-58080

Eclipse Milo 2026-08-04 CVSS v3.1

CVSS

8.2

Description

In Eclipse Milo versions 1.0.0 through 1.1.4, `OpcUaServerConfig.copy()` fails to preserve a configured `RoleMapper`. On servers that rely on role permissions and construct the running configuration through `copy()`, sessions receive no role IDs and the default access controller skips role-permission checks, allowing an anonymous client where anonymous sessions are permitted to read role-permission metadata, invoke protected methods, or delete protected nodes.

Weakness (CWE)

CWE-862 Missing Authorization

EPSS Score

0.28%

Probability of exploitation in next 30 days

20.2th percentile

References

https://github.com/eclipse-milo/milo/commit/d51f03e9a75f313ab41c3d68d809f4b922073f1a Patch https://gitlab.eclipse.org/security/cve-assignment/-/work_items/180 Issue Tracking, Patch, Vendor Advisory https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/598 Issue Tracking, Vendor Advisory

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Base CVE data derived from NVD (public domain). Enrichment by dbcve.org (CC-BY-4.0). Fetched via API.

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