CVE-2026-93328 Missing Authorization in MCP Toolbox for Databases allows Arbitrary File Read and Write
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-93328?
CVE-2026-93328 is a critical vulnerability in MCP Toolbox for Databases (googleapis/mcp-toolbox), published on 26 Oct 2026.
Official description
Path Traversal and Missing Authorization in cloud-storage source in Google Cloud MCP Toolbox for Databases (googleapis/mcp-toolbox) versions 1.2.0 through 1.4.0 allows an unauthenticated remote attacker to exfiltrate host files to external Google Cloud Storage buckets and overwrite arbitrary local files via crafted tool invocation parameters.
Which versions are affected by CVE-2026-93328?
How do I fix CVE-2026-93328?
No fix has been published for CVE-2026-93328 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-93328 being exploited?
There is no known exploitation of CVE-2026-93328 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-2gc9-c85v-5vwr.