What’s Vulnerable › Vulnerabilities

CVE-2026-88938: knowns through 0.33.0 Path Traversal via code.find MCP tool

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-10 · updated 2026-09-11
• Weakness: CWE-22

Description

knowns through 0.33.0 fails to confine the path argument of the code.find MCP tool to the project root, allowing AI agent sessions to read source files anywhere on the host. Attackers can supply absolute paths or relative traversal sequences to the path argument and retrieve full file contents from outside the intended project directory.

Affected products

• knowns-dev knowns: through 0.33.0

References

• https://github.com/knowns-dev/knowns/blob/v0.33.0/internal/mcp/handlers/code.go#L1293-L1354
• https://github.com/knowns-dev/knowns/blob/v0.33.0/internal/mcp/handlers/code.go#L873-L902
• https://github.com/knowns-dev/knowns/security/advisories/GHSA-5cj9-fcqq-g2h7
• https://www.vulncheck.com/advisories/knowns-through-0.33.0-path-traversal-via-code-find-mcp-tool
• https://github.com/knowns-dev/knowns/security/advisories/GHSA-5cj9-fcqq-g2h7

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