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CVE-2026-50189— Appsmith: RCE via Supervisord XML-RPC Admin Interface Exposed via /supervisor Caddy Route

Quick assessment

Affected
appsmithorg appsmith
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.

Appsmith是Appsmith团队开源的一个用于构建、部署和维护内部应用程序的开源平台。 Appsmith 2.1之前版本存在安全漏洞，该漏洞源于bundled supervisord暴露XML-RPC接口，且APPSMITH_SUPERVISOR_PASSWORD可通过GET /api/v1/admin/env获取，可能导致任何经过身份验证的管理员通过twiddler.addProgramToGroup发送任意XML-RPC调用并执行OS命令。

AI Predicted 8.8 Difficulty: Easy EPSS 0.49% · P41

Affected Version Matrix 1

VendorProduct Version RangeStatus
appsmithorg appsmith < 2.1 affected
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I. Basic Information for CVE-2026-50189

Vulnerability Information
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Vulnerability Title
Appsmith: RCE via Supervisord XML-RPC Admin Interface Exposed via /supervisor Caddy Route
Source: CVE Program / CVE List V5
Vulnerability Description
Appsmith is a platform to build admin panels, internal tools, and dashboards. Prior to 2.1, Appsmith's bundled supervisord exposes an XML-RPC interface on port 9001, reachable from outside the container via a Caddy reverse-proxy route at /supervisor/* on the public ingress. Combined with the APPSMITH_SUPERVISOR_PASSWORD exposed via GET /api/v1/admin/env, any authenticated administrator can send arbitrary XML-RPC calls to supervisord and execute OS commands inside the Docker container via twiddler.addProgramToGroup. This vulnerability is fixed in 2.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Source: CVE Program / CVE List V5
Vulnerability Type
宽松定义的白名单
Source: CVE Program / CVE List V5
Vulnerability Title
Appsmith 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Appsmith是Appsmith团队开源的一个用于构建、部署和维护内部应用程序的开源平台。 Appsmith 2.1之前版本存在安全漏洞，该漏洞源于bundled supervisord暴露XML-RPC接口，且APPSMITH_SUPERVISOR_PASSWORD可通过GET /api/v1/admin/env获取，可能导致任何经过身份验证的管理员通过twiddler.addProgramToGroup发送任意XML-RPC调用并执行OS命令。
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
appsmithorg appsmith < 2.1 -

II. Public POCs for CVE-2026-50189

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III. Intelligence Information for CVE-2026-50189

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Vendor Advisories for CVE-2026-50189 (1)

Same Patch Batch · appsmithorg · 2026-06-24 · 4 CVEs total

CVE-2026-55454 9.9 CRITICAL Appsmith: Caddy admin API exposed without authentication
CVE-2026-49979 Appsmith: SSRF via `POST /api/v1/admin/send-test-email` — JavaMail Bypasses WebClient IP F
CVE-2026-55455 Appsmith: SSRF in REST API / GraphQL datasource plugins via insufficient host denylist

IV. Related Vulnerabilities

Same product: appsmith
Same vendor: appsmithorg
Same weakness: CWE-183

V. Comments for CVE-2026-50189

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