File disclosure via symlink traversal in read_content
Published Jan 7, 2026 · Updated Jan 7, 2026
Path traversal in SylphxAI filesystem-mcp 0.5.8 allows remote attackers to read files outside the configured project root. The read_content tool calls resolvePath before symbolic links are resolved, then fs.readFile follows the link without rechecking its final target. Exploitation requires a usable symlink inside the allowed directory, and disclosure is limited to files readable by the server process.
Summary
What happened
Path traversal in SylphxAI filesystem-mcp 0.5.8 allows remote attackers to read files outside the configured project root. The read_content tool calls resolvePath before symbolic links are resolved, then fs.readFile follows the link without rechecking its final target. Exploitation requires a usable symlink inside the allowed directory, and disclosure is limited to files readable by the server process.
The record
- CVE
- CVE-2025-67366
- Published
- Jan 7, 2026
- Updated
- Jan 7, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-23, T1005
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 7, 2026CVE publishedPublication date reported by the CVE source.
- Jan 7, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
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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.
Public exploit references
- Symlink traversal read_content reproductionproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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