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CVE-2026-82180

Quick assessment

Affected
Eclipse Foundation Eclipse Arrowhead
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Eclipse Arrowhead是美国Eclipse基金会的一套面向工业物联网的自动化集成框架。 Eclipse Arrowhead 5.0.0版本至5.2.1版本存在安全漏洞，该漏洞源于MQTT API启用证书身份验证策略时，CertificateMqttFilter未验证X.509证书签名和信任链，导致攻击者可通过自签名证书绕过身份验证，获得完整MQTT管理访问权限。

CVSS 9.5 · Critical EPSS 0.34% · P26

Affected Version Matrix 1

VendorProduct Version RangeStatus
Eclipse Foundation Eclipse Arrowhead 5.0.0≤ 5.2.1 affected
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I. Basic Information for CVE-2026-82180

Vulnerability Information
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Vulnerability Title
N/A
Source: 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.
Source: 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
Source: CVE Program / CVE List V5
Vulnerability Type
证书验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Eclipse Arrowhead 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Eclipse Arrowhead是美国Eclipse基金会的一套面向工业物联网的自动化集成框架。 Eclipse Arrowhead 5.0.0版本至5.2.1版本存在安全漏洞，该漏洞源于MQTT API启用证书身份验证策略时，CertificateMqttFilter未验证X.509证书签名和信任链，导致攻击者可通过自签名证书绕过身份验证，获得完整MQTT管理访问权限。
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 Arrowhead 5.0.0 ~ 5.2.1 -

II. Public POCs for CVE-2026-82180

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III. Intelligence Information for CVE-2026-82180

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Vendor Advisories for CVE-2026-82180 (1)

Same Patch Batch · Eclipse Foundation · 2026-09-03 · 4 CVEs total

CVE-2026-80515 8.9 HIGH Eclipse Arrowhead 授权问题漏洞
CVE-2026-85199 8.8 HIGH Eclipse aeriOS Federator 路径遍历漏洞
CVE-2026-84736 8.3 HIGH Eclipse aeriOS Federator 加密问题漏洞

IV. Related Vulnerabilities

Same product: Eclipse Arrowhead
Same vendor: Eclipse Foundation
Same weakness: CWE-295

V. Comments for CVE-2026-82180

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