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TI-2026-42595 Aliases CVE-2026-59726

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

Priority MEDIUM 54CWE-306Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass, Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-306 and CWE-78.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.03019 87th percentileScored 2026-11-07
Fix Fixed ruflo (ruvnet): 3.16.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ruvnetruflobefore 3.16.33.16.3Patch availableCNA
  • ruflo Vendorruvnet Affected before 3.16.3 Fixed in 3.16.3 Patch available CNA

Remediation

  • Fix · CNA ruflo (ruvnet) Fixed in 3.16.3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-59726

References

Other 4

  • TI-2026-41910 OS command injection in ruvnet agentic-flow CVSS 3.1HIGH 8.8
  • TI-2026-06727 ruvnet sublinear-time-solver MCP server.js export_state path traversal CVSS 4.0MEDIUM 6.9
  • TI-2026-40142 sublinear-time-solver: Arbitrary file write in consciousness-explorer / sublinear-time-solver MCP export_state CVSS 3.1HIGH 7.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences