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CVE-2026-59726

10.0 · CRITICAL

Ruflo is an agent meta-harness for Claude Code and Codex.

Published Jul 9, 2026CWE-78EPSS 3.02%

Overview

CVE-2026-59726 is a critical-severity vulnerability. It was published on July 9, 2026 and has a CVSS 3.1 base score of 10.0 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 10.0, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/ruvnet/ruflo/commit/d00a0a40cd8bdbca877ac7f675f416bdc69accd1GitHubgithub.com/ruvnet/ruflo/pull/2521GitHubgithub.com/ruvnet/ruflo/releases/tag/v3.16.3GitHubgithub.com/ruvnet/ruflo/security/advisories/GHSA-c4hm-4h84-2cf3

How CyberStrike helps

Frequently asked questions

What is CVE-2026-59726?

CVE-2026-59726 is a critical-severity vulnerability. It was published on July 9, 2026 and has a CVSS 3.1 base score of 10.0 (CRITICAL).

How severe is CVE-2026-59726?

This vulnerability has a CVSS 3.1 base score of 10.0, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-59726?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-59726?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-59726 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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