CVE-2026-84197
Quick assessment
Affected
Eclipse Foundation Eclipse Ditto
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.
在 Eclipse Ditto 的 Node.js JavaScript 客户端中， 包的所有已发布版本（从 2.0.0 到 3.9.0）及其前身包 （从 1.0.0 到 2.1.0）存在一个安全漏洞： 在这些版本中，WebSocket 传输层在创建底层 WebSocket 连接时，硬编码设置了 。因此，对于所有 （加密的 WebSocket Secure）连接，证书链验证和主机名验证均被禁用。并且，没有任何构建器选项、构造器参数或环境变量允许应用程序重新启用这些验证。 这意味着，若攻击者处于能够拦截该连接的位置（
Possible ATT&CK Techniques 1 AI
T1557 · Adversary-in-the-Middle
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I. Basic Information for CVE-2026-84197
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In Eclipse Ditto's Node.js JavaScript client, all released versions of @eclipse-ditto/ditto-javascript-client-node from 2.0.0 to 3.9.0 and of its predecessor package @eclipse-ditto/ditto-javascript-client-node_1.0 from 1.0.0 to 2.1.0, the WebSocket transport hard-codes rejectUnauthorized: false when creating the underlying ws WebSocket. Certificate chain and hostname validation are therefore disabled for every wss:// connection, and no builder option, constructor argument or environment variable lets an application turn validation back on. An attacker in a position to intercept the connection can present an arbitrary certificate, complete the TLS handshake, read the credentials that the configured authentication provider sends in the Authorization header of the WebSocket upgrade request, and read, alter or inject Ditto Protocol messages for the lifetime of the connection. The Java client, the browser/DOM JavaScript client and the HTTP transport of the Node.js client are not affected.
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:L/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
证书验证不恰当
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Eclipse Foundation | Eclipse Ditto | 2.0.0 ~ 3.8.1 | - |
|
| Eclipse Foundation | Eclipse Ditto | 1.0.0 ~ 2.1.0 | - |
|
II. Public POCs for CVE-2026-84197
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-84197 (1)
Same Patch Batch · Eclipse Foundation · 2026-09-08 · 5 CVEs total
| CVE-2026-86464 | 9.9 CRITICAL | CVE-2026-86464 |
| CVE-2026-12611 | 8.7 HIGH | Jetty HTTP/2竞态条件导致服务器无响应 |
| CVE-2026-19203 | 8.3 HIGH | Jetty特制HTTP分块请求致请求走私漏洞 |
| CVE-2026-86590 | 6.3 MEDIUM | Eclipse Che 7.79.0-7.121.0 服务端请求伪造（SSRF） |
IV. Related Vulnerabilities
V. Comments for CVE-2026-84197
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