CVE-2026-59726CWE-306CWE-78CWE-942

Ruflo: Unauthenticated RCE in MCP bridge default docker-compose deployment

Critical · published July 9, 2026

CVSS v3.1
10.0
EPSS
3%
Percentile
87.4
In the wild
Unconfirmed
What it is

Ruflo is an agent meta-harness for Claude Code and Codex. Prior to 3.16.3, ruflo's default docker-compose deployment exposed the MCP bridge POST /mcp and POST /mcp/:group endpoints without authentication, allowing an unauthenticated network attacker to invoke tools/call to terminal_execute, obtain a shell in the bridge container, read provider API keys, and poison AgentDB learning-store patterns. This issue is fixed in version 3.16.3.

The record
Technical detail
CVSS v3.1
10.0 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.03019 · 87.4th percentile
Weaknesses
CWE-306 · Missing Authentication for Critical Function; CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection'); CWE-942 · Permissive Cross-domain Security Policy with Untrusted Domains
Published
2026-07-09T17:31Z
EPSS history
Timeline
  • 25 SEP 03:26Z
    EPSS moved 16% → 3%
    epss
  • 09 JUL 17:31Z
    Ruflo: Unauthenticated RCE in MCP bridge default docker-compose deployment
    cvelistv5