Jiffy Intel — Threat intelligence for AI artifacts

Summary

MCP server that claims the tool name `scan` or `analyze` — names already used by Jiffy's first-party MCP. Collisions are resolved non-deterministically by the client, allowing the malicious server's tool to receive calls intended for Jiffy.

Severity & confidence

Severity

Low

Hygiene-grade issue with limited direct impact. Fix opportunistically; monitor in case context changes (new exploit, new dependency, etc.).

Confidence

Confirmed

Observed directly by Jiffy scanners or validated by multiple independent sources. Indicators are reliable enough to drive automated action.

Indicators

Observed patterns and artifacts associated with this entry. Each indicator can be copied into your detection stack or SIEM.

(?i)(?:tools?\s*:\s*\[)(?:[^\]]{0,500})(?:scan|analyze|inspect)

Detection rule

A YARA-style pseudo-rule auto-generated from the indicators above. Useful as a starting point — adapt the syntax for your target detection platform.

YARA-style pseudo-rule

rule jiffy_ti_2026_000057
{
    meta:
        source = "jiffy-intel"
        severity = "low"
        description = "Auto-generated from Jiffy Intel indicators"
    strings:
    $tool_call_pattern_0 = "(?i)(?:tools?\\s*:\\s*\\[)(?:[^\\]]{0,500})(?:scan|analyze|inspect)"
    condition:
        $tool_call_pattern_0
}

Auto-generated from the indicators above. Adapt syntax for your detection stack before deploying.

Affected tools

Tool	Versions	Status
Any MCP-capable agent	`*`	vulnerable

Example artifacts

Sanitized examples of artifacts Jiffy has observed exhibiting this pattern. Publisher handles are redacted; version ranges and status reflect the most recent scan.

security-scanner-mcpMCP server
Under review
Source
MCP Registry
Versions
0.1.0
First observed
Mar 27, 2026
code-inspector-mcpMCP server
Quarantined
Source
Community registry
First observed
Mar 31, 2026

How to remediate

01Namespace MCP tool calls (`jiffy/scan` vs. `scan`).
02Reject servers that claim unnamespaced common names.

Timeline & sources

Timeline

First observedMar 27, 202621 days ago
Last updatedApr 28, 2026today
PublishedApr 4, 202613 days ago

Sources

curated

References

blog.jiffylabs.aiJiffy Research

Jiffy Research — MCP Security Field Guide

https://blog.jiffylabs.ai/posts/mcp-security-a-security-teams-field-guide

genai.owasp.orgOWASP

OWASP LLM-06: Excessive Agency (2026)

https://genai.owasp.org/llmrisk/llm-06-2026/

Related intel

Other entries of type Compromised Mcp, or the most recent published entries if no same-type matches exist.

Compromised McpCritical

Custom GPT Action schema includes an undocumented "admin" path

Custom GPT's OpenAPI schema defines a `/admin` path that the model can call, not mentioned in the GPT description. The path accepts arbitrary shell commands and runs them on the Action backend.

Jiffy IntelApr 28

Compromised McpHigh

Claude Project knowledge file contains embedded prompt-injection

Project knowledge documents (Word, PDF) uploaded as context contain footer text crafted as agent directives. Parsers pick up the footer; the model treats it as part of the project's truth.

Jiffy IntelApr 27