CVE-2026-82180
一分钟漏洞结论
影响对象
Eclipse Foundation Eclipse Arrowhead
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
在 Eclipse Arrowhead 5.0.0 至 5.2.1 版本中，当启用了基于证书认证的 MQTT API 时， 会解析客户端在 MQTT 消息载荷（ 的 authentication 字段）中发送的 X.509 证书，并将其 Subject DN 视为已认证的身份。该证书通过 进行解码，但其签名从未被验证，其颁发者链也从未对照任何信任存储进行校验。 认证过程被简化为针对攻击者提供数据的两个字符串比较： 1. DN 限定符必须等于 或 ； 2. CN 中的云名称部分必须与服务器自身的云名称匹配。 这两个值
影响版本矩阵 1
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Eclipse Foundation | Eclipse Arrowhead | 5.0.0≤ 5.2.1 |
affected |
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一、 漏洞 CVE-2026-82180 基础信息
漏洞信息
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Vulnerability Title
N/A
来源: CVE Program / CVE List V5
Vulnerability Description
In Eclipse Arrowhead versions from 5.0.0 to 5.2.1 when the MQTT API is enabled with the certificate authentication policy, CertificateMqttFilter parses an X.509 certificate that the client sends inside the MQTT message payload (the authentication field of MqttRequestTemplate) and treats its Subject DN as the authenticated identity. The certificate is decoded with CertificateFactory.generateCertificate() but its signature is never verified and its issuer chain is never validated against any trust store. Authorisation is reduced to two string comparisons on attacker-supplied data: the DN-qualifier must equal "sy" or "op", and the cloud-name part of the CN must match the server's. Both values are public (the cloud name is in the server's own TLS certificate). An attacker who can publish to the MQTT broker can therefore mint a self-signed certificate with CN=Sysop.<cloud>.<org>.arrowhead.eu, dnQualifier=op, send it as the authentication field, and be authenticated as the cloud's system operator with isSysOp == true. This passes the downstream ManagementServiceMqttFilter (request.isSysOp() → allowed) and gives full management access over MQTT. The HTTP CertificateFilter is not affected — it reads the certificate from jakarta.servlet.request.X509Certificate, which Tomcat populates only after a successful mTLS handshake against the configured trust store.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:H
来源: CVE Program / CVE List V5
Vulnerability Type
证书验证不恰当
来源: CVE Program / CVE List V5
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| Eclipse Foundation | Eclipse Arrowhead | 5.0.0 ~ 5.2.1 | - |
|
二、漏洞 CVE-2026-82180 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-82180 厂商安全公告 (1)
同批安全公告 · Eclipse Foundation · 2026-09-03 · 共 4 条
| CVE-2026-80515 | 8.9 HIGH | Eclipse Arrowhead 5.0.0-5.2.1 认证授权绕过 |
| CVE-2026-85199 | 8.8 HIGH | CVE-2026-85199 |
| CVE-2026-84736 | 8.3 HIGH | Eclipse aeriOS Federator默认禁用TLS证书校验漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-82180
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