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NVD description
A security flaw has been discovered in samanhappy MCPHub up to 1.0.45/1.1.7. Impacted is an unknown function of the file src/utils/passthroughHeaders.ts. The manipulation of the argument passthroughHeaders results in information disclosure. The attack may be launched remotely. Upgrading to version 1.1.8 is recommended to address this issue. The patch is identified as 040f7b9ae004070bdfe5084cde6bc2c609f78e76. It is advisable to upgrade the affected component.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE
MCP gateway config is becoming the new secret-leak surface. CVE-2026-120323 (samanhappy MCPHub): OSV flags info disclosure via `passthroughHeaders` in src/utils/passthroughHeaders.ts. Affected through 1.0.45 / 1.1.7; upgrade to 1.1.8. Different bug from LiteLLM's salt-key reuse — same hygiene: what the gateway forwards is as sensitive as what it stores. Audit your allowlist before the next stdio server goes in. https://github.com/samanhappy/mcphub