vulnerability / NVI-00017501 / Revision 1
mcp-pinot: Unauthenticated tool invocation via default oauth_enabled=False + host 0.0.0.0 bind
GitHub lists this reviewed advisory for mcp-pinot-server. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.
This report has not inspected your inventory, configuration, deployed build, reachability or evidence. A catalog listing and a severity score do not establish exposure or compromise.
01 / Meaning
Why it matters
Published affected context helps an owner decide what evidence to gather. This report has not examined your application.
10 critical
GitHub source severity; exploitability and local consequence require separate evidence.
As of · GitHub Advisory Database
02 / Applicability
The affected context
Affected versions, configuration prerequisites and known exclusions are public. Confirm each one against the deployed service.
mcp-pinot-server
source listed<= 3.0.1
## Resolution Fixed in v3.1.0, released 2026-05-25. The fix was merged in PR #95 at commit `1c7d3f9`. The fix changes the default HTTP bind host to `127.0.0.1`, refuses non-loopback HTTP/HTTPS exposure unless OAuth is enabled, makes Helm exposure opt-in and OAuth-gated, and adds parser-backed single-statement read-only validation for `read-query`. ## CVSS evaluation Reviewed on 2026-05-25. The advisory remains **Critical** with `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H` = **10.0**. Rationale: | Metric | Value | Reason | |---|---|---| | AV | Network | The default HTTP server bound to `0.0.0.0:8080` and accepted remote HTTP requests. | | AC | Low | Exploitation required only a direct MCP tool call. | | PR | None | OAuth was disabled by default. | | UI | None | No user interaction was required. | | S | Changed | The vulnerable MCP server used its server-side credentials to act on the separate Pinot cluster security boundary. | | C | High | Unauthenticated callers coul
03 / Response
What to do next
- investigate
Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.
Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system. GitHub Advisory Database
A fixed release is not deployment evidence.
Check current vendor support and compatibility. After making a change, verify the deployed build and relevant runtime conditions. Keep the evidence, owner and time. An updated lockfile alone does not prove what is running.
04 / Limits
What this report cannot establish
- Customer inventory, deployment, reachability and exploitation have not been inspected.
05 / Provenance
Sources you can inspect
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- GHSA-73cv-556c-w3g6 ↗
GitHub Advisory Database · vendor advisory
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Public revision history
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- Revision 1 ·
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