CVE-2026-49257: startreedata mcp-pinot · Missing Authentication
Affects startreedata mcp-pinotSource CVE Database V5
Not known to be exploited · CVSS 10.0 Critical : upgrade to 3.1.0 as a priority.
Data as of 1 Nov 2026, 08:20 UTC
- EPSS
- 0.6% chance of exploitation in 30 days – higher than 49% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 3.1.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 18 Jun 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 31 Oct 2026.
What to do
Upgrade startreedata mcp-pinot to 3.1.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| startreedatamcp-pinot | Affected
| Fixed in
|
PyPImcp-pinotpkg:pypi/mcp-pinotOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade mcp-pinot to version 3.1.0 or later, where authentication is properly enforced for all MCP functions.
Description
mcp-pinot is a Python-based Model Context Protocol (MCP) server for interacting with Apache Pinot. In versions 3.0.1 and below, mcp-pinot defaults to running an HTTP MCP server bound to 0.0.0.0:8080 with no authentication enabled. All MCP tools, including SQL query execution, schema creation, and table-config mutation, are reachable by any network-adjacent caller. The server proxies these calls using server-side Pinot credentials, producing a confused-deputy condition that yields full read/write access to the configured Pinot cluster. This issue has been fixed in version 3.1.0
References
- github.com/startreedata/mcp-pinot/security/advisories/GHSA-73cv-556c-w3g6 (opens in a new tab)
- github.com/startreedata/mcp-pinot/issues/90 (opens in a new tab)
- github.com/startreedata/mcp-pinot/pull/95 (opens in a new tab)
- github.com/startreedata/mcp-pinot/commit/1c7d3f9cd384854bf72c127d230bdb32299475ad (opens in a new tab)