[Eclipse Milo] CVE Reservation Request: Copied server config role authorization bypass
# CVE Reservation Request
## CVE record information
**Project name:** Eclipse Milo
**Project id:** iot.milo
**Versions affected:** [1.0.0, 1.1.5)
**Common Weakness Enumeration (CWE):**
- [CWE-862: Missing Authorization](https://cwe.mitre.org/data/definitions/862.html)
**Common Attack Pattern Enumerations and Classifications (CAPEC):**
- [CAPEC-122: Privilege Abuse](https://capec.mitre.org/data/definitions/122.html)
**Common Vulnerability Scoring System:** [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N (8.8 High)](https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N)
**Summary:** 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.
**Links:**
- https://github.com/eclipse-milo/milo/commit/d51f03e9a75f313ab41c3d68d809f4b922073f1a
- https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/598
**Credits:** Abhinav Agarwal (GitHub: @abhinavagarwal07)
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