Vulnerability Details CVE-2026-18954
Incorrect authorization in the aggregation pipeline tool in Amazon AWS Labs DocumentDB MCP Server before 1.0.12 might allow an authenticated MCP client to perform inappropriate write operations on the connected database via write-capable aggregation pipeline stages that bypass the read-only mode enforcement logic.
To remediate this issue, users should upgrade to version 1.0.12 or later.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 1.4%
CVSS Severity
CVSS v3 Score 5.5
References
Products affected by CVE-2026-18954
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cpe:2.3:a:amazon:documentdb_mcp_server:0.0.1
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cpe:2.3:a:amazon:documentdb_mcp_server:1.0.0
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cpe:2.3:a:amazon:documentdb_mcp_server:1.0.1
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cpe:2.3:a:amazon:documentdb_mcp_server:1.0.10
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cpe:2.3:a:amazon:documentdb_mcp_server:1.0.11
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cpe:2.3:a:amazon:documentdb_mcp_server:1.0.2
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cpe:2.3:a:amazon:documentdb_mcp_server:1.0.3
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cpe:2.3:a:amazon:documentdb_mcp_server:1.0.5
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cpe:2.3:a:amazon:documentdb_mcp_server:1.0.6
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cpe:2.3:a:amazon:documentdb_mcp_server:1.0.7
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cpe:2.3:a:amazon:documentdb_mcp_server:1.0.8
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cpe:2.3:a:amazon:documentdb_mcp_server:1.0.9