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Security audit

karakeep

Security checks for vulnerabilities and agentic risk

Overview

The skill is a straightforward Karakeep CLI usage guide; it needs normal care around API keys and delete commands but does not show hidden or malicious behavior.

Install only if you intend to let the agent manage your Karakeep account. Prefer KARAKEEP_API_KEY in an environment variable or secret manager, avoid passing keys on the command line, and require explicit confirmation before running bookmark or list delete commands.

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
  • Tool MisuseTool Parameter Abuse, Chaining Abuse, Unsafe Defaults
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (4)

Rp1

Medium
Category
MCP Rug Pull
Confidence
75% confidence
Finding

Docker image references without a specific tag (:latest is implicit) or digest (@sha256:...) can be silently replaced by a malicious image.

Content

No source excerpt is available for this finding.

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
91% confidence
Finding

The skill documents passing API credentials via CLI flags without warning that command-line arguments may be exposed through shell history, process listings, logs, or terminal recordings. Because this skill requires a sensitive API key to access a bookmark service, encouraging unsafe secret handling increases the chance of credential disclosure and subsequent unauthorized access.

Content

No source excerpt is available for this finding.

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
88% confidence
Finding

The documented lists delete and bookmarks delete commands are destructive and are presented without any warning, confirmation guidance, or note about irreversibility. In an agent skill context, terse destructive examples can be copied or invoked automatically, increasing the risk of accidental user-data loss.

Content

No source excerpt is available for this finding.

Tool Parameter Abuse

Low
Category
Tool Misuse
Confidence
15% confidence
Finding

Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).

Content

Scanner excerpt · SKILL.md (reported line 138)May include surrounding context.

Or via Docker:

bash
docker run --rm ghcr.io/karakeep-app/karakeep-cli:release --help

Authentication