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CVE-2026-59726 is an improper authentication vulnerability in Ruflo, an agent meta-harness for Claude Code and Codex. In versions prior to 3.16.3, the default docker-compose deployment exposed the MCP bridge POST /mcp and POST /mcp/:group endpoints without authentication. An unauthenticated network attacker could reach these endpoints and invoke tools/call to terminal_execute, resulting in command execution within the bridge container. The exposed functionality also enabled access to provider API keys present in the container environment and allowed manipulation of AgentDB learning-store patterns. The issue affects default deployments where the MCP bridge is network-accessible and was corrected in version 3.16.3.
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What an attacker gets, and what they’ve been doing with it.
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No public exploit code observed for this vulnerability.
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.