CVE-2026-59726: Ruflo: Unauthenticated RCE in MCP bridge default docker-compose deployment

Severity: critical (CVSS 10.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.0% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-07-09 · updated 2026-10-25
Weakness: CWE-78

Description

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.

Affected products

ruvnet ruflo: before 3.16.3

References

https://github.com/ruvnet/ruflo/commit/d00a0a40cd8bdbca877ac7f675f416bdc69accd1
https://github.com/ruvnet/ruflo/pull/2521
https://github.com/ruvnet/ruflo/releases/tag/v3.16.3
https://github.com/ruvnet/ruflo/security/advisories/GHSA-c4hm-4h84-2cf3

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