Local command execution via shell-interpolated MCP input
Published Mar 28, 2026 · Updated Mar 28, 2026
OS command injection in kazuph mcp-docs-rag 0.5.0 and earlier allows local users to execute arbitrary commands via MCP tool input. cloneRepository in src/index.ts interpolates repository_url and related user-controlled parameters into command strings passed to child_process.exec, causing shell metacharacters to be interpreted as commands. Exploitation requires access to invoke add_git_repository or add_text_file and runs commands with the MCP server process's privileges.
Summary
What happened
OS command injection in kazuph mcp-docs-rag 0.5.0 and earlier allows local users to execute arbitrary commands via MCP tool input. cloneRepository in src/index.ts interpolates repository_url and related user-controlled parameters into command strings passed to child_process.exec, causing shell metacharacters to be interpreted as commands. Exploitation requires access to invoke add_git_repository or add_text_file and runs commands with the MCP server process's privileges.
The record
- CVE
- CVE-2026-5007
- Published
- Mar 28, 2026
- Updated
- Mar 28, 2026
- Vendor
- kazuph
- Product
- mcp-docs-rag
- Classifications
- CWE-77, CWE-78, T1059
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 28, 2026CVE publishedPublication date reported by the CVE source.
- Mar 28, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0.1
- Affected versionversion=0.2
- Affected versionversion=0.3
- Affected versionversion=0.4
- Affected versionversion=0.5.0
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- mcp-docs-rag_bug.pdf proof of conceptproof of concept · unverified
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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