What’s Vulnerable › Vulnerabilities

CVE-2026-58080

• Severity: high (CVSS 8.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-04 · updated 2026-10-23
• Weakness: CWE-862

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.

Affected products

• Eclipse Foundation Eclipse Milo: from 1.0.0 before 1.1.5 — fixed in 1.1.5

How to fix

Upgrade to a fixed version: Eclipse Foundation Eclipse Milo 1.1.5. Check the vendor advisory for mitigations.

References

• https://github.com/eclipse-milo/milo/commit/d51f03e9a75f313ab41c3d68d809f4b922073f1a
• https://gitlab.eclipse.org/security/cve-assignment/-/work_items/180
• https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/598

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