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ATR-2026-00012highTool Poisoningexperimental

Unauthorized Tool Call Detection

Detects unauthorized or malicious tool call attempts including parameter injection, path traversal, shell injection in string parameters, privilege escalation via parameter manipulation, tool enumeration/discovery, SQL injection in tool arguments, LDAP injection, template injection, environment variable extraction, file operation abuse, and serialization attacks. This rule focuses on parameter-level attacks rather than tool name matching, since tool names are easily changed but injection patterns in arguments are structurally consistent across attack variants.

Severity
high
Category
Tool Poisoning
Scan Target
mcp
Author
ATR Community

Response Actions

block toolalertsnapshotescalate

References

OWASP Agentic
ASI02:2026 - Tool Misuse and ExploitationASI03:2026 - Identity and Privilege Abuse
OWASP LLM
LLM06:2025 - Excessive Agency
MITRE ATLAS
AML.T0053 - LLM Plugin Compromise