CVE-2026-50189CWE-183CWE-918

Appsmith: RCE via Supervisord XML-RPC Admin Interface Exposed via /supervisor Caddy Route

High · published June 24, 2026

CVSS v4.0
8.9
EPSS
0%
Percentile
41.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
8.9 · HIGH
Vector
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
EPSS
0.00494 · 41.5th percentile
Weaknesses
CWE-183 · Permissive List of Allowed Inputs; CWE-918 · Server-Side Request Forgery (SSRF)
Published
2026-06-24T21:35Z
EPSS history
Timeline
  • 24 JUN 21:35Z
    Appsmith: RCE via Supervisord XML-RPC Admin Interface Exposed via /supervisor Caddy Route
    cvelistv5