Unrated severityNVD Advisory· Published Aug 5, 2026
Incorrect authorization in the aggregation pipeline tool in Amazon AWS Labs DocumentDB MCP Server
CVE-2026-18954
Description
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.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2- Range: <1.0.12
- Range: <1.0.12
Patches
Vulnerability mechanics
References
2- github.com/awslabs/mcp/releases/tag/2026.04.20260408085348mitrerelease-notespatch
- aws.amazon.com/security/security-bulletins/2026-076-aws/mitrevendor-advisory
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