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CVE-2026-58080

Quick assessment

Affected
Eclipse Foundation Eclipse Milo
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Eclipse Milo是美国Eclipse基金会开源的一个实现OPCUA协议的通信栈库。 Eclipse Milo 1.0.0版本至1.1.4版本存在授权问题漏洞，该漏洞源于OpcUaServerConfig.copy()未能保留配置的RoleMapper，可能导致会话未收到角色ID且默认访问控制器跳过角色权限检查，允许匿名客户端读取角色权限元数据、调用受保护方法或删除受保护节点。

CVSS 8.8 · High EPSS 0.38% · P29

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts

Affected Version Matrix 1

VendorProduct Version RangeStatus
Eclipse Foundation Eclipse Milo 1.0.0< 1.1.5 affected
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I. Basic Information for CVE-2026-58080

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Eclipse Milo 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Eclipse Milo是美国Eclipse基金会开源的一个实现OPCUA协议的通信栈库。 Eclipse Milo 1.0.0版本至1.1.4版本存在授权问题漏洞，该漏洞源于OpcUaServerConfig.copy()未能保留配置的RoleMapper，可能导致会话未收到角色ID且默认访问控制器跳过角色权限检查，允许匿名客户端读取角色权限元数据、调用受保护方法或删除受保护节点。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Eclipse Foundation Eclipse Milo 1.0.0 ~ 1.1.5 -

II. Public POCs for CVE-2026-58080

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Reproduced successfully in a real sandbox · Below is the actual recording of building the environment and exploiting the vulnerability.
Reproduction recording is a Pro+ exclusive
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claude_code · 12674 chars
GitHub 复现环境（可 clone 直接跑）
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
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POC zip download
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III. Intelligence Information for CVE-2026-58080

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Patches & Fixes for CVE-2026-58080 (1)

Vendor Advisories for CVE-2026-58080 (1)

Other References for CVE-2026-58080 (1)

Same Patch Batch · Eclipse Foundation · 2026-08-04 · 7 CVEs total

CVE-2026-60007 9.1 CRITICAL Eclipse Milo 信息泄露漏洞
CVE-2026-10050 8.7 HIGH Digest authentication lossy encoding
CVE-2026-62927 8.7 HIGH Eclipse Milo 授权问题漏洞
CVE-2026-63252 8.7 HIGH Eclipse Milo 资源管理错误漏洞
CVE-2026-63248 6.9 MEDIUM Eclipse Milo 授权问题漏洞
CVE-2026-61387 6.9 MEDIUM Eclipse Milo 资源管理错误漏洞

IV. Related Vulnerabilities

Same product: Eclipse Milo
Same vendor: Eclipse Foundation
Same weakness: CWE-862

V. Comments for CVE-2026-58080

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