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Security audit

Firehose Web Monitor

Security checks for vulnerabilities and agentic risk

Overview

This skill is a straightforward Firehose API helper that discloses its API-token use and network calls to Firehose.

Install only if you intend to let the agent work with your Firehose account. Use scoped tap tokens where possible, reserve the management key for tap administration, and review any requested delete or update action before approving it.

A.I.G

Vulnerability Patterns
  • Skill Instruction HijackingAlters the agent's session goals or safety constraints when the skill loads
  • Agent Memory PoisoningWrites attacker-controlled rules into memory that affect later sessions
  • Remote Payload Retrieval and ExecutionFetches external code whose behavior can change after review
  • Embedded Malicious CodeShips malicious scripts inside the skill and executes them locally
  • Unauthorized Access and Privilege EscalationObtains permissions beyond the task's legitimate needs

SkillSpector

Vulnerability Patterns
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
Findings (5)

External Transmission

Medium
Category
Data Exfiltration
Confidence
60% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 99)May include surrounding context.

bash
# Create a tap (management key) — the response contains the new tap token
curl -s -X POST -H "Authorization: Bearer $FIREHOSE_MANAGEMENT_KEY" \
  -H "Content-Type: application/json" -d '{"name":"Brand Mentions"}' \
  https://api.firehose.com/v1/taps

External Transmission

Medium
Category
Data Exfiltration
Confidence
50% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 101)May include surrounding context.

md
# Create a tap (management key) — the response contains the new tap token
curl -s -X POST -H "Authorization: Bearer $FIREHOSE_MANAGEMENT_KEY" \
  -H "Content-Type: application/json" -d '{"name":"Brand Mentions"}' \
  https://api.firehose.com/v1/taps

# Create a rule, then list the tap's rules (tap token)
curl -s -X POST -H "Authorization: Bearer $FIREHOSE_TAP_TOKEN" \

External Transmission

Medium
Category
Data Exfiltration
Confidence
50% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 106)May include surrounding context.

md
# Create a tap (management key) — the response contains the new tap token
curl -s -X POST -H "Authorization: Bearer $FIREHOSE_MANAGEMENT_KEY" \
  -H "Content-Type: application/json" -d '{"name":"Brand Mentions"}' \
  https://api.firehose.com/v1/taps

# Create a rule, then list the tap's rules (tap token)
curl -s -X POST -H "Authorization: Bearer $FIREHOSE_TAP_TOKEN" \

External Transmission

Medium
Category
Data Exfiltration
Confidence
50% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 107)May include surrounding context.

md
# Create a tap (management key) — the response contains the new tap token
curl -s -X POST -H "Authorization: Bearer $FIREHOSE_MANAGEMENT_KEY" \
  -H "Content-Type: application/json" -d '{"name":"Brand Mentions"}' \
  https://api.firehose.com/v1/taps

# Create a rule, then list the tap's rules (tap token)
curl -s -X POST -H "Authorization: Bearer $FIREHOSE_TAP_TOKEN" \

External Transmission

Medium
Category
Data Exfiltration
Confidence
50% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 110)May include surrounding context.

md
# Create a tap (management key) — the response contains the new tap token
curl -s -X POST -H "Authorization: Bearer $FIREHOSE_MANAGEMENT_KEY" \
  -H "Content-Type: application/json" -d '{"name":"Brand Mentions"}' \
  https://api.firehose.com/v1/taps

# Create a rule, then list the tap's rules (tap token)
curl -s -X POST -H "Authorization: Bearer $FIREHOSE_TAP_TOKEN" \

Static analysis

No suspicious patterns detected.