The Patching Friars' AlmanacA calendar of CVE saints

July 29

RufRootHoly card for rufroot, generated with AI (Claude, Anthropic) for the Lunario dei Frati Patchatori.CC BY-NC-SA 4.0 MCP :3001 RufRoot PONS SINE CUSTODE
🤖 Image and text generated with AI

⬇ Download holy card: ·

⚔ Commemorated today: The Scourge of the Misconfigured Cloud (2019)

Embed on your site

Saint RufRoot, Who Opened the Agents' Bridge to All

Patron of agent-orchestration platforms, MCP bridges, and ports left open to the Internet.

Life

In July 2026 Eli Ainhorn of Noma revealed RufRoot (CVE-2026-59726): the MCP bridge of a popular agent-orchestration platform exposed its tools without authentication behind an HTTP port, bound by default to all interfaces. A single unauthenticated request was enough to run commands in the container, steal the model keys, spin up swarms of agents at the victim's expense and leave a back door. The remedy came with version 3.16.3.

Prayer

O Saint RufRoot, who opens the bridge to whoever knocks, teach our platforms to ask for a password before handing over the tools. Amen.

How to celebrate

Celebrated by updating to 3.16.3, binding the bridge to localhost only, requiring authentication and rotating the exposed keys.

A bridge open and unguarded puts the agent at the thief's service.

Technical record

Disclosed on
July 29 2026
CVE
CVE-2026-59726
CVSS
10.0
Product
ruvnet · ruflo

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.

Sources: noma.security

Commemorated today

Also remembered today

Shortcuts: ← → to move, D day, W week, M month, T today.

📅 Add to your calendar

Saints:Google CalendarApple, Outlook and others (.ics)

Observances (feasts, scourges and miracles):Google CalendarApple, Outlook and others (.ics)

In Google Calendar you can also paste the URL in Settings → Add calendar → From URL. The first sync can take a few hours.