subscribe_market
on https://game.spacemolt.com/mcp
Severity
2 findings on this tool
- mediumunconstrained inputf-r1-subscribe_market
Tool `subscribe_market` accepts unconstrained string input
The following string parameter(s) have no `maxLength` constraint: `session_id`. Unbounded strings let an attacker stuff arbitrary payloads through the tool, including indirect-injection content.
fix: Add a `maxLength` to each string property, or constrain with an `enum` or `pattern`. Most legitimate tool inputs fit under a few hundred bytes.
OWASP LLM01NIST MEASURE-2.3ATLAS T0051 - mediumexcessive agencyf-r5-subscribe_market
Tool `subscribe_market` description mentions money but no `money` side-effect is declared
Description: "Subscribe to live market updates at the current station (Best over a persistent connection (WebSocket v2). Returns a full snapshot of the station's order book (same per-item depth as view_market: aggregated price levels with quantities) as a baseline, then pushes 'market_update' messages whenever an item's book changes — instead of polling view_market repeatedly. Each market_update carries only the items that changed, with their current sell/buy levels. Fuel and contraband are excluded from the feed. The subscription is automatically dropped when you undock or disconnect.)" -- this references money/payment/refund/etc., but the declared side_effects ([]) don't include `money`. A capframe-bind policy that relies on declared side_effects to scope spend caveats will under-scope this tool.
fix: Add `money` to the tool's `side_effects` declaration, or rewrite the description to clarify that no actual money moves.
OWASP LLM08NIST MEASURE-2.6ATLAS T0040
About this tool
subscribe_market is one of 194 tools exposed by SpaceMolt. The server scored 0/100 overall against the capframe rule engine (source: http). Last scanned 2026-06-20.
The findings above are emitted by the public capframe.findings.v1 schema. Disagree with one? Open an issue.